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Schedule III - Real Estate and Accumulated Depreciation (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items]    
Encumbrances $ 763,616 $ 763,616
Initial Cost of Land 721,610 721,610
Building and Improvements 1,725,364 1,725,364
Costs capitalized subsequent to acquisition or completion and valuation provision 657,900 657,900
Land 694,116 694,116
Building and improvements 2,410,758 2,410,758
Total 3,104,874 3,104,874
Accumulated depreciation 12/31/2012 735,593 735,593
4250 River Green Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Duluth, GA
Encumbrances      
Initial Cost of Land 264 264
Building and Improvements 1,522 1,522
Costs capitalized subsequent to acquisition or completion and valuation provision 21 21
Land 214 214
Building and improvements 1,593 1,593
Total 1,807 1,807
Accumulated depreciation 12/31/2012 756 756
Year Acquired/ Constructed   Jan. 01, 1994
3450 Corporate Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Duluth, GA
Encumbrances      
Initial Cost of Land 506 506
Building and Improvements 2,904 2,904
Costs capitalized subsequent to acquisition or completion and valuation provision (706) (706)
Land 284 284
Building and improvements 2,420 2,420
Total 2,704 2,704
Accumulated depreciation 12/31/2012 1,264 1,264
Year Acquired/ Constructed   Jan. 01, 1994
1650 Highway 155 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   McDonough, GA
Encumbrances      
Initial Cost of Land 788 788
Building and Improvements 4,544 4,544
Costs capitalized subsequent to acquisition or completion and valuation provision (1,196) (1,196)
Land 365 365
Building and improvements 3,771 3,771
Total 4,136 4,136
Accumulated depreciation 12/31/2012 2,179 2,179
Year Acquired/ Constructed   Jan. 01, 1994
1665 Dogwood [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Conyers, GA
Encumbrances      
Initial Cost of Land 635 635
Building and Improvements 3,662 3,662
Costs capitalized subsequent to acquisition or completion and valuation provision 810 810
Land 635 635
Building and improvements 4,472 4,472
Total 5,107 5,107
Accumulated depreciation 12/31/2012 1,962 1,962
Year Acquired/ Constructed   Jan. 01, 1994
1715 Dogwood [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Conyers, GA
Encumbrances      
Initial Cost of Land 288 288
Building and Improvements 1,675 1,675
Costs capitalized subsequent to acquisition or completion and valuation provision 801 801
Land 228 228
Building and improvements 2,536 2,536
Total 2,764 2,764
Accumulated depreciation 12/31/2012 949 949
Year Acquired/ Constructed   Jan. 01, 1994
11235 Harland Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Covington, GA
Encumbrances      
Initial Cost of Land 125 125
Building and Improvements 739 739
Costs capitalized subsequent to acquisition or completion and valuation provision 164 164
Land 125 125
Building and improvements 903 903
Total 1,028 1,028
Accumulated depreciation 12/31/2012 395 395
Year Acquired/ Constructed   Jan. 01, 1994
4051 Southmeadow Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances      
Initial Cost of Land 726 726
Building and Improvements 4,130 4,130
Costs capitalized subsequent to acquisition or completion and valuation provision 866 866
Land 726 726
Building and improvements 4,996 4,996
Total 5,722 5,722
Accumulated depreciation 12/31/2012 2,110 2,110
Year Acquired/ Constructed   Jan. 01, 1994
4071 Southmeadow Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances      
Initial Cost of Land 750 750
Building and Improvements 4,460 4,460
Costs capitalized subsequent to acquisition or completion and valuation provision 1,919 1,919
Land 828 828
Building and improvements 6,301 6,301
Total 7,129 7,129
Accumulated depreciation 12/31/2012 2,778 2,778
Year Acquired/ Constructed   Jan. 01, 1994
4081 Southmeadow Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances      
Initial Cost of Land 1,012 1,012
Building and Improvements 5,918 5,918
Costs capitalized subsequent to acquisition or completion and valuation provision 1,654 1,654
Land 1,157 1,157
Building and improvements 7,427 7,427
Total 8,584 8,584
Accumulated depreciation 12/31/2012 3,189 3,189
Year Acquired/ Constructed   Jan. 01, 1994
5570 Tulane Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances 2,326 2,326
Initial Cost of Land 527 527
Building and Improvements 2,984 2,984
Costs capitalized subsequent to acquisition or completion and valuation provision 1,142 1,142
Land 546 546
Building and improvements 4,107 4,107
Total 4,653 4,653
Accumulated depreciation 12/31/2012 1,442 1,442
Year Acquired/ Constructed   Jan. 01, 1996
955 Cobb Place [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Kennesaw, GA
Encumbrances 2,960 2,960
Initial Cost of Land 780 780
Building and Improvements 4,420 4,420
Costs capitalized subsequent to acquisition or completion and valuation provision 722 722
Land 804 804
Building and improvements 5,118 5,118
Total 5,922 5,922
Accumulated depreciation 12/31/2012 1,942 1,942
Year Acquired/ Constructed   Jan. 01, 1997
1005 Sigman Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Conyers, GA
Encumbrances 2,088 2,088
Initial Cost of Land 566 566
Building and Improvements 3,134 3,134
Costs capitalized subsequent to acquisition or completion and valuation provision 433 433
Land 574 574
Building and improvements 3,559 3,559
Total 4,133 4,133
Accumulated depreciation 12/31/2012 1,129 1,129
Year Acquired/ Constructed   Jan. 01, 1999
2050 East Park Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Conyers, GA
Encumbrances      
Initial Cost of Land 452 452
Building and Improvements 2,504 2,504
Costs capitalized subsequent to acquisition or completion and valuation provision 143 143
Land 459 459
Building and improvements 2,640 2,640
Total 3,099 3,099
Accumulated depreciation 12/31/2012 865 865
Year Acquired/ Constructed   Jan. 01, 1999
1256 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances 1,236 1,236
Initial Cost of Land 336 336
Building and Improvements 1,907 1,907
Costs capitalized subsequent to acquisition or completion and valuation provision 229 229
Land 339 339
Building and improvements 2,133 2,133
Total 2,472 2,472
Accumulated depreciation 12/31/2012 567 567
Year Acquired/ Constructed   Jan. 01, 2001
1265 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances 1,153 1,153
Initial Cost of Land 307 307
Building and Improvements 1,742 1,742
Costs capitalized subsequent to acquisition or completion and valuation provision 257 257
Land 309 309
Building and improvements 1,997 1,997
Total 2,306 2,306
Accumulated depreciation 12/31/2012 568 568
Year Acquired/ Constructed   Jan. 01, 2001
1280 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances 1,154 1,154
Initial Cost of Land 281 281
Building and Improvements 1,592 1,592
Costs capitalized subsequent to acquisition or completion and valuation provision 266 266
Land 283 283
Building and improvements 1,856 1,856
Total 2,139 2,139
Accumulated depreciation 12/31/2012 508 508
Year Acquired/ Constructed   Jan. 01, 2001
1300 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances 1,665 1,665
Initial Cost of Land 420 420
Building and Improvements 2,381 2,381
Costs capitalized subsequent to acquisition or completion and valuation provision 285 285
Land 423 423
Building and improvements 2,663 2,663
Total 3,086 3,086
Accumulated depreciation 12/31/2012 760 760
Year Acquired/ Constructed   Jan. 01, 2001
1325 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances 1,328 1,328
Initial Cost of Land 332 332
Building and Improvements 1,879 1,879
Costs capitalized subsequent to acquisition or completion and valuation provision 249 249
Land 334 334
Building and improvements 2,126 2,126
Total 2,460 2,460
Accumulated depreciation 12/31/2012 535 535
Year Acquired/ Constructed   Jan. 01, 2001
1351 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances      
Initial Cost of Land 370 370
Building and Improvements 2,099 2,099
Costs capitalized subsequent to acquisition or completion and valuation provision (949) (949)
Land 146 146
Building and improvements 1,374 1,374
Total 1,520 1,520
Accumulated depreciation 12/31/2012 631 631
Year Acquired/ Constructed   Jan. 01, 2001
1346 Oakbrook Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances      
Initial Cost of Land 740 740
Building and Improvements 4,192 4,192
Costs capitalized subsequent to acquisition or completion and valuation provision (708) (708)
Land 352 352
Building and improvements 3,872 3,872
Total 4,224 4,224
Accumulated depreciation 12/31/2012 1,506 1,506
Year Acquired/ Constructed   Jan. 01, 2001
3060 South Park Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ellenwood, GA
Encumbrances      
Initial Cost of Land 1,600 1,600
Building and Improvements 12,464 12,464
Costs capitalized subsequent to acquisition or completion and valuation provision 2,135 2,135
Land 1,604 1,604
Building and improvements 14,595 14,595
Total 16,199 16,199
Accumulated depreciation 12/31/2012 3,970 3,970
Year Acquired/ Constructed   Jan. 01, 2003
Greenwood Industrial Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   McDonough, GA
Encumbrances 4,517 4,517
Initial Cost of Land 1,550 1,550
Costs capitalized subsequent to acquisition or completion and valuation provision 7,485 7,485
Land 1,550 1,550
Building and improvements 7,485 7,485
Total 9,035 9,035
Accumulated depreciation 12/31/2012 1,572 1,572
Year Acquired/ Constructed   Jan. 01, 2004
46 Kent Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Cartersville GA
Encumbrances 1,755 1,755
Initial Cost of Land 794 794
Building and Improvements 2,252 2,252
Costs capitalized subsequent to acquisition or completion and valuation provision 6 6
Land 798 798
Building and improvements 2,254 2,254
Total 3,052 3,052
Accumulated depreciation 12/31/2012 641 641
Year Acquired/ Constructed   Jan. 01, 2005
100 Dorris Williams [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Villa Rica GA
Encumbrances      
Initial Cost of Land 401 401
Building and Improvements 3,754 3,754
Costs capitalized subsequent to acquisition or completion and valuation provision (698) (698)
Land 406 406
Building and improvements 3,051 3,051
Total 3,457 3,457
Accumulated depreciation 12/31/2012 632 632
Year Acquired/ Constructed   Jan. 01, 2005
605 Stonehill Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances 1,539 1,539
Initial Cost of Land 485 485
Building and Improvements 1,979 1,979
Costs capitalized subsequent to acquisition or completion and valuation provision (23) (23)
Land 490 490
Building and improvements 1,951 1,951
Total 2,441 2,441
Accumulated depreciation 12/31/2012 1,338 1,338
Year Acquired/ Constructed   Jan. 01, 2005
5095 Phillip Lee Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Atlanta, GA
Encumbrances 4,841 4,841
Initial Cost of Land 735 735
Building and Improvements 3,627 3,627
Costs capitalized subsequent to acquisition or completion and valuation provision 390 390
Land 740 740
Building and improvements 4,012 4,012
Total 4,752 4,752
Accumulated depreciation 12/31/2012 1,855 1,855
Year Acquired/ Constructed   Jan. 01, 2005
6514 Warren Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances      
Initial Cost of Land 510 510
Building and Improvements 1,250 1,250
Costs capitalized subsequent to acquisition or completion and valuation provision 91 91
Land 513 513
Building and improvements 1,338 1,338
Total 1,851 1,851
Accumulated depreciation 12/31/2012 325 325
Year Acquired/ Constructed   Jan. 01, 2005
6544 Warren Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norcross, GA
Encumbrances      
Initial Cost of Land 711 711
Building and Improvements 2,310 2,310
Costs capitalized subsequent to acquisition or completion and valuation provision 297 297
Land 715 715
Building and improvements 2,603 2,603
Total 3,318 3,318
Accumulated depreciation 12/31/2012 687 687
Year Acquired/ Constructed   Jan. 01, 2005
5356 E. Ponce De Leon [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Stone Mountain, GA
Encumbrances 2,752 2,752
Initial Cost of Land 604 604
Building and Improvements 3,888 3,888
Costs capitalized subsequent to acquisition or completion and valuation provision 501 501
Land 610 610
Building and improvements 4,383 4,383
Total 4,993 4,993
Accumulated depreciation 12/31/2012 1,692 1,692
Year Acquired/ Constructed   Jan. 01, 2005
5390 E. Ponce De Leon [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Stone Mountain, GA
Encumbrances      
Initial Cost of Land 397 397
Building and Improvements 1,791 1,791
Costs capitalized subsequent to acquisition or completion and valuation provision (10) (10)
Land 402 402
Building and improvements 1,776 1,776
Total 2,178 2,178
Accumulated depreciation 12/31/2012 530 530
Year Acquired/ Constructed   Jan. 01, 2005
195 & 197 Collins Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Athens, GA
Encumbrances      
Initial Cost of Land 1,410 1,410
Building and Improvements 5,344 5,344
Costs capitalized subsequent to acquisition or completion and valuation provision (1,742) (1,742)
Land 989 989
Building and improvements 4,023 4,023
Total 5,012 5,012
Accumulated depreciation 12/31/2012 2,831 2,831
Year Acquired/ Constructed   Jan. 01, 2005
1755 Enterprise Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Buford, GA
Encumbrances 1,522 1,522
Initial Cost of Land 712 712
Building and Improvements 2,118 2,118
Costs capitalized subsequent to acquisition or completion and valuation provision 18 18
Land 716 716
Building and improvements 2,132 2,132
Total 2,848 2,848
Accumulated depreciation 12/31/2012 678 678
Year Acquired/ Constructed   Jan. 01, 2006
4555 Atwater Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Buford, GA
Encumbrances 2,475 2,475
Initial Cost of Land 881 881
Building and Improvements 3,550 3,550
Costs capitalized subsequent to acquisition or completion and valuation provision 460 460
Land 885 885
Building and improvements 4,006 4,006
Total 4,891 4,891
Accumulated depreciation 12/31/2012 1,326 1,326
Year Acquired/ Constructed   Jan. 01, 2006
80 Liberty Industrial Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   McDonough, GA
Encumbrances      
Initial Cost of Land 756 756
Building and Improvements 3,695 3,695
Costs capitalized subsequent to acquisition or completion and valuation provision (1,199) (1,199)
Land 467 467
Building and improvements 2,785 2,785
Total 3,252 3,252
Accumulated depreciation 12/31/2012 859 859
Year Acquired/ Constructed   Jan. 01, 2007
596 Bonnie Valentine [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pendergrass, GA
Encumbrances      
Initial Cost of Land 2,580 2,580
Building and Improvements 21,730 21,730
Costs capitalized subsequent to acquisition or completion and valuation provision 2,766 2,766
Land 2,594 2,594
Building and improvements 24,482 24,482
Total 27,076 27,076
Accumulated depreciation 12/31/2012 4,458 4,458
Year Acquired/ Constructed   Jan. 01, 2007
11415 Old Roswell Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Alpharetta, GA
Encumbrances      
Initial Cost of Land 2,403 2,403
Building and Improvements 1,912 1,912
Costs capitalized subsequent to acquisition or completion and valuation provision 388 388
Land 2,428 2,428
Building and improvements 2,275 2,275
Total 4,703 4,703
Accumulated depreciation 12/31/2012 610 610
Year Acquired/ Constructed   Jan. 01, 2008
1820 Portal [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 884 884
Building and Improvements 4,891 4,891
Costs capitalized subsequent to acquisition or completion and valuation provision 1,551 1,551
Land 899 899
Building and improvements 6,427 6,427
Total 7,326 7,326
Accumulated depreciation 12/31/2012 1,966 1,966
Year Acquired/ Constructed   Jan. 01, 1998
9700 Martin Luther King Hwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 700 700
Building and Improvements 1,920 1,920
Costs capitalized subsequent to acquisition or completion and valuation provision 529 529
Land 700 700
Building and improvements 2,449 2,449
Total 3,149 3,149
Accumulated depreciation 12/31/2012 837 837
Year Acquired/ Constructed   Jan. 01, 2003
9730 Martin Luther King Hwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 500 500
Building and Improvements 955 955
Costs capitalized subsequent to acquisition or completion and valuation provision 388 388
Land 500 500
Building and improvements 1,343 1,343
Total 1,843 1,843
Accumulated depreciation 12/31/2012 436 436
Year Acquired/ Constructed   Jan. 01, 2003
4621 Boston Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 1,100 1,100
Building and Improvements 3,070 3,070
Costs capitalized subsequent to acquisition or completion and valuation provision 390 390
Land 1,100 1,100
Building and improvements 3,460 3,460
Total 4,560 4,560
Accumulated depreciation 12/31/2012 1,019 1,019
Year Acquired/ Constructed   Jan. 01, 2003
4720 Boston Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 1,200 1,200
Building and Improvements 2,174 2,174
Costs capitalized subsequent to acquisition or completion and valuation provision 604 604
Land 1,200 1,200
Building and improvements 2,778 2,778
Total 3,978 3,978
Accumulated depreciation 12/31/2012 773 773
Year Acquired/ Constructed   Jan. 01, 2003
22520 Randolph Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dulles, VA
Encumbrances 7,393 7,393
Initial Cost of Land 3,200 3,200
Building and Improvements 8,187 8,187
Costs capitalized subsequent to acquisition or completion and valuation provision (850) (850)
Land 3,208 3,208
Building and improvements 7,329 7,329
Total 10,537 10,537
Accumulated depreciation 12/31/2012 1,344 1,344
Year Acquired/ Constructed   Jan. 01, 2004
22630 Dulles Summit Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dulles, VA
Encumbrances      
Initial Cost of Land 2,200 2,200
Building and Improvements 9,346 9,346
Costs capitalized subsequent to acquisition or completion and valuation provision (820) (820)
Land 2,206 2,206
Building and improvements 8,520 8,520
Total 10,726 10,726
Accumulated depreciation 12/31/2012 1,593 1,593
Year Acquired/ Constructed   Jan. 01, 2004
4201 Forbes Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 356 356
Building and Improvements 1,823 1,823
Costs capitalized subsequent to acquisition or completion and valuation provision 341 341
Land 375 375
Building and improvements 2,145 2,145
Total 2,520 2,520
Accumulated depreciation 12/31/2012 630 630
Year Acquired/ Constructed   Jan. 01, 2005
4370-4383 Lottsford Vista Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 279 279
Building and Improvements 1,358 1,358
Costs capitalized subsequent to acquisition or completion and valuation provision 74 74
Land 296 296
Building and improvements 1,415 1,415
Total 1,711 1,711
Accumulated depreciation 12/31/2012 349 349
Year Acquired/ Constructed   Jan. 01, 2005
4400 Lottsford Vista Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 351 351
Building and Improvements 1,955 1,955
Costs capitalized subsequent to acquisition or completion and valuation provision 303 303
Land 372 372
Building and improvements 2,237 2,237
Total 2,609 2,609
Accumulated depreciation 12/31/2012 537 537
Year Acquired/ Constructed   Jan. 01, 2005
4420 Lottsford Vista Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lanham, MD
Encumbrances      
Initial Cost of Land 539 539
Building and Improvements 2,196 2,196
Costs capitalized subsequent to acquisition or completion and valuation provision 146 146
Land 568 568
Building and improvements 2,313 2,313
Total 2,881 2,881
Accumulated depreciation 12/31/2012 639 639
Year Acquired/ Constructed   Jan. 01, 2005
11204 McCormick Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 1,017 1,017
Building and Improvements 3,132 3,132
Costs capitalized subsequent to acquisition or completion and valuation provision 148 148
Land 1,038 1,038
Building and improvements 3,259 3,259
Total 4,297 4,297
Accumulated depreciation 12/31/2012 1,100 1,100
Year Acquired/ Constructed   Jan. 01, 2005
11110 Pepper Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 918 918
Building and Improvements 2,529 2,529
Costs capitalized subsequent to acquisition or completion and valuation provision 345 345
Land 938 938
Building and improvements 2,854 2,854
Total 3,792 3,792
Accumulated depreciation 12/31/2012 947 947
Year Acquired/ Constructed   Jan. 01, 2005
11100-11120 Gilroy Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 901 901
Building and Improvements 1,455 1,455
Costs capitalized subsequent to acquisition or completion and valuation provision (55) (55)
Land 919 919
Building and improvements 1,382 1,382
Total 2,301 2,301
Accumulated depreciation 12/31/2012 412 412
Year Acquired/ Constructed   Jan. 01, 2005
318 Clubhouse Lane [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 701 701
Building and Improvements 1,691 1,691
Costs capitalized subsequent to acquisition or completion and valuation provision 53 53
Land 718 718
Building and improvements 1,727 1,727
Total 2,445 2,445
Accumulated depreciation 12/31/2012 491 491
Year Acquired/ Constructed   Jan. 01, 2005
10709 Gilroy Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances 2,479 2,479
Initial Cost of Land 913 913
Building and Improvements 2,705 2,705
Costs capitalized subsequent to acquisition or completion and valuation provision (113) (113)
Land 913 913
Building and improvements 2,592 2,592
Total 3,505 3,505
Accumulated depreciation 12/31/2012 1,035 1,035
Year Acquired/ Constructed   Jan. 01, 2005
10707 Gilroy Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 1,111 1,111
Building and Improvements 3,819 3,819
Costs capitalized subsequent to acquisition or completion and valuation provision 683 683
Land 1,136 1,136
Building and improvements 4,477 4,477
Total 5,613 5,613
Accumulated depreciation 12/31/2012 1,224 1,224
Year Acquired/ Constructed   Jan. 01, 2005
38 Loveton Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sparks, MD
Encumbrances      
Initial Cost of Land 1,648 1,648
Building and Improvements 2,151 2,151
Costs capitalized subsequent to acquisition or completion and valuation provision (241) (241)
Land 1,690 1,690
Building and improvements 1,868 1,868
Total 3,558 3,558
Accumulated depreciation 12/31/2012 562 562
Year Acquired/ Constructed   Jan. 01, 2005
7120-7132 Ambassador Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 829 829
Building and Improvements 1,329 1,329
Costs capitalized subsequent to acquisition or completion and valuation provision 1,142 1,142
Land 847 847
Building and improvements 2,453 2,453
Total 3,300 3,300
Accumulated depreciation 12/31/2012 496 496
Year Acquired/ Constructed   Jan. 01, 2005
7142 Ambassador Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hunt Valley, MD
Encumbrances      
Initial Cost of Land 924 924
Building and Improvements 2,876 2,876
Costs capitalized subsequent to acquisition or completion and valuation provision 2,655 2,655
Land 942 942
Building and improvements 5,513 5,513
Total 6,455 6,455
Accumulated depreciation 12/31/2012 1,118 1,118
Year Acquired/ Constructed   Jan. 01, 2005
7144-7162 Ambassador Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 979 979
Building and Improvements 1,672 1,672
Costs capitalized subsequent to acquisition or completion and valuation provision 119 119
Land 1,000 1,000
Building and improvements 1,770 1,770
Total 2,770 2,770
Accumulated depreciation 12/31/2012 525 525
Year Acquired/ Constructed   Jan. 01, 2005
7223-7249 Ambassador Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Woodlawn, MD
Encumbrances      
Initial Cost of Land 1,283 1,283
Building and Improvements 2,674 2,674
Costs capitalized subsequent to acquisition or completion and valuation provision 33 33
Land 1,311 1,311
Building and improvements 2,679 2,679
Total 3,990 3,990
Accumulated depreciation 12/31/2012 982 982
Year Acquired/ Constructed   Jan. 01, 2005
7200 Rutherford Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 1,032 1,032
Building and Improvements 2,150 2,150
Costs capitalized subsequent to acquisition or completion and valuation provision 331 331
Land 1,054 1,054
Building and improvements 2,459 2,459
Total 3,513 3,513
Accumulated depreciation 12/31/2012 733 733
Year Acquired/ Constructed   Jan. 01, 2005
2700 Lord Baltimore Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 875 875
Building and Improvements 1,826 1,826
Costs capitalized subsequent to acquisition or completion and valuation provision 993 993
Land 897 897
Building and improvements 2,797 2,797
Total 3,694 3,694
Accumulated depreciation 12/31/2012 1,032 1,032
Year Acquired/ Constructed   Jan. 01, 2005
1225 Bengies Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Baltimore, MD
Encumbrances      
Initial Cost of Land 2,640 2,640
Building and Improvements 270 270
Costs capitalized subsequent to acquisition or completion and valuation provision 14,660 14,660
Land 2,823 2,823
Building and improvements 14,747 14,747
Total 17,570 17,570
Accumulated depreciation 12/31/2012 2,563 2,563
Year Acquired/ Constructed   Jan. 01, 2008
1214-B Freedom Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Cranberry Township, PA  
Encumbrances 1,369 1,369
Initial Cost of Land 31 31
Building and Improvements 994 994
Costs capitalized subsequent to acquisition or completion and valuation provision 613 613
Land 200 200
Building and improvements 1,438 1,438
Total 1,638 1,638
Accumulated depreciation 12/31/2012 1,155 1,155
Year Acquired/ Constructed   Jan. 01, 1994
401 Russell Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Middletown, PA  
Encumbrances 1,216 1,216
Initial Cost of Land 262 262
Building and Improvements 857 857
Costs capitalized subsequent to acquisition or completion and valuation provision 1,696 1,696
Land 287 287
Building and improvements 2,528 2,528
Total 2,815 2,815
Accumulated depreciation 12/31/2012 1,784 1,784
Year Acquired/ Constructed   Jan. 01, 1994
2700 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Middletown, PA  
Initial Cost of Land 196 196
Building and Improvements 997 997
Costs capitalized subsequent to acquisition or completion and valuation provision 935 935
Land 206 206
Building and improvements 1,922 1,922
Total 2,128 2,128
Accumulated depreciation 12/31/2012 1,302 1,302
Year Acquired/ Constructed   Jan. 01, 1994
2701 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Middletown, PA  
Encumbrances 1,892 1,892
Initial Cost of Land 141 141
Building and Improvements 859 859
Costs capitalized subsequent to acquisition or completion and valuation provision 1,263 1,263
Land 164 164
Building and improvements 2,099 2,099
Total 2,263 2,263
Accumulated depreciation 12/31/2012 1,314 1,314
Year Acquired/ Constructed   Jan. 01, 1994
2780 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Middletown, PA  
Encumbrances 1,690 1,690
Initial Cost of Land 113 113
Building and Improvements 743 743
Costs capitalized subsequent to acquisition or completion and valuation provision 1,165 1,165
Land 209 209
Building and improvements 1,812 1,812
Total 2,021 2,021
Accumulated depreciation 12/31/2012 1,310 1,310
Year Acquired/ Constructed   Jan. 01, 1994
350 Old Silver Spring Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Mechanicsburg, PA  
Initial Cost of Land 510 510
Building and Improvements 2,890 2,890
Costs capitalized subsequent to acquisition or completion and valuation provision 6,452 6,452
Land 541 541
Building and improvements 9,311 9,311
Total 9,852 9,852
Accumulated depreciation 12/31/2012 3,254 3,254
Year Acquired/ Constructed   Jan. 01, 1997
16522 Hunters Green Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Hagerstown, MD  
Encumbrances 12,680 12,680
Initial Cost of Land 1,390 1,390
Building and Improvements 13,104 13,104
Costs capitalized subsequent to acquisition or completion and valuation provision 3,893 3,893
Land 1,863 1,863
Building and improvements 16,524 16,524
Total 18,387 18,387
Accumulated depreciation 12/31/2012 3,889 3,889
Year Acquired/ Constructed   Jan. 01, 2003
18212 Shawley Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Hagerstown, MD  
Encumbrances 6,539 6,539
Initial Cost of Land 1,000 1,000
Building and Improvements 5,847 5,847
Costs capitalized subsequent to acquisition or completion and valuation provision 908 908
Land 1,016 1,016
Building and improvements 6,739 6,739
Total 7,755 7,755
Accumulated depreciation 12/31/2012 1,601 1,601
Year Acquired/ Constructed   Jan. 01, 2004
37 Valley View Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Jessup, PA  
Encumbrances 2,976 2,976
Initial Cost of Land 542 542
Costs capitalized subsequent to acquisition or completion and valuation provision 3,017 3,017
Land 532 532
Building and improvements 3,027 3,027
Total 3,559 3,559
Accumulated depreciation 12/31/2012 598 598
Year Acquired/ Constructed   Jan. 01, 2004
301 Railroad Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Shiremanstown, PA  
Initial Cost of Land 1,181 1,181
Building and Improvements 4,447 4,447
Costs capitalized subsequent to acquisition or completion and valuation provision 2,611 2,611
Land 1,328 1,328
Building and improvements 6,911 6,911
Total 8,239 8,239
Accumulated depreciation 12/31/2012 2,252 2,252
Year Acquired/ Constructed   Jan. 01, 2005
431 Railroad Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Shiremanstown, PA  
Encumbrances 8,698 8,698
Initial Cost of Land 1,293 1,293
Building and Improvements 7,164 7,164
Costs capitalized subsequent to acquisition or completion and valuation provision 2,044 2,044
Land 1,341 1,341
Building and improvements 9,160 9,160
Total 10,501 10,501
Accumulated depreciation 12/31/2012 3,163 3,163
Year Acquired/ Constructed   Jan. 01, 2005
6951 Allentown Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Harrisburg, PA  
Initial Cost of Land 585 585
Building and Improvements 3,176 3,176
Costs capitalized subsequent to acquisition or completion and valuation provision 127 127
Land 601 601
Building and improvements 3,287 3,287
Total 3,888 3,888
Accumulated depreciation 12/31/2012 910 910
Year Acquired/ Constructed   Jan. 01, 2005
320 Reliance Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Washington, PA  
Initial Cost of Land 201 201
Building and Improvements 1,819 1,819
Costs capitalized subsequent to acquisition or completion and valuation provision (283) (283)
Land 178 178
Building and improvements 1,559 1,559
Total 1,737 1,737
Accumulated depreciation 12/31/2012 586 586
Year Acquired/ Constructed   Jan. 01, 2005
1351 Eisenhower Blvd., Bldg 1 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Harrisburg, PA  
Encumbrances 1,881 1,881
Initial Cost of Land 382 382
Building and Improvements 2,343 2,343
Costs capitalized subsequent to acquisition or completion and valuation provision 55 55
Land 387 387
Building and improvements 2,393 2,393
Total 2,780 2,780
Accumulated depreciation 12/31/2012 637 637
Year Acquired/ Constructed   Jan. 01, 2006
1351 Eisenhower Blvd., Bldg 2 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Harrisburg, PA  
Encumbrances 1,366 1,366
Initial Cost of Land 436 436
Building and Improvements 1,587 1,587
Costs capitalized subsequent to acquisition or completion and valuation provision 52 52
Land 443 443
Building and improvements 1,632 1,632
Total 2,075 2,075
Accumulated depreciation 12/31/2012 495 495
Year Acquired/ Constructed   Jan. 01, 2006
1490 Dennison Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Carlisle, PA  
Initial Cost of Land 1,500 1,500
Costs capitalized subsequent to acquisition or completion and valuation provision 13,876 13,876
Land 2,341 2,341
Building and improvements 13,035 13,035
Total 15,376 15,376
Accumulated depreciation 12/31/2012 2,045 2,045
Year Acquired/ Constructed   Jan. 01, 2008
298 First Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Gouldsboro, PA  
Initial Cost of Land 7,022 7,022
Costs capitalized subsequent to acquisition or completion and valuation provision 58,266 58,266
Land 7,019 7,019
Building and improvements 58,269 58,269
Total 65,288 65,288
Accumulated depreciation 12/31/2012 6,636 6,636
Year Acquired/ Constructed   Jan. 01, 2008
225 Cross Farm Lane [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) York, PA  
Encumbrances 18,476 18,476
Initial Cost of Land 4,718 4,718
Costs capitalized subsequent to acquisition or completion and valuation provision 23,567 23,567
Land 4,715 4,715
Building and improvements 23,570 23,570
Total 28,285 28,285
Accumulated depreciation 12/31/2012 3,099 3,099
Year Acquired/ Constructed   Jan. 01, 2008
105 Steamboat Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State) Manchester, PA  
Initial Cost of Land 4,085 4,085
Building and Improvements 14,464 14,464
Costs capitalized subsequent to acquisition or completion and valuation provision 6 6
Land 4,085 4,085
Building and improvements 14,470 14,470
Total 18,555 18,555
Accumulated depreciation 12/31/2012 533 533
Year Acquired/ Constructed   Jan. 01, 2012
720-730 Landwehr Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Northbrook, IL
Encumbrances      
Initial Cost of Land 521 521
Building and Improvements 2,982 2,982
Costs capitalized subsequent to acquisition or completion and valuation provision 567 567
Land 521 521
Building and improvements 3,549 3,549
Total 4,070 4,070
Accumulated depreciation 12/31/2012 1,486 1,486
Year Acquired/ Constructed   Jan. 01, 1994
1385 101st Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lemont, IL
Encumbrances 4,148 4,148
Initial Cost of Land 967 967
Building and Improvements 5,554 5,554
Costs capitalized subsequent to acquisition or completion and valuation provision 1,691 1,691
Land 968 968
Building and improvements 7,244 7,244
Total 8,212 8,212
Accumulated depreciation 12/31/2012 2,929 2,929
Year Acquired/ Constructed   Jan. 01, 1994
6750 South Sayre Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bedford Park, IL
Encumbrances      
Initial Cost of Land 224 224
Building and Improvements 1,309 1,309
Costs capitalized subsequent to acquisition or completion and valuation provision 552 552
Land 224 224
Building and improvements 1,861 1,861
Total 2,085 2,085
Accumulated depreciation 12/31/2012 791 791
Year Acquired/ Constructed   Jan. 01, 1994
585 Slawin Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Mount Prospect, IL
Encumbrances      
Initial Cost of Land 611 611
Building and Improvements 3,505 3,505
Costs capitalized subsequent to acquisition or completion and valuation provision 1,697 1,697
Land 525 525
Building and improvements 5,288 5,288
Total 5,813 5,813
Accumulated depreciation 12/31/2012 2,745 2,745
Year Acquired/ Constructed   Jan. 01, 1994
2300 Windsor Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Addison, IL
Encumbrances 3,826 3,826
Initial Cost of Land 688 688
Building and Improvements 3,943 3,943
Costs capitalized subsequent to acquisition or completion and valuation provision 1,226 1,226
Land 696 696
Building and improvements 5,161 5,161
Total 5,857 5,857
Accumulated depreciation 12/31/2012 2,325 2,325
Year Acquired/ Constructed   Jan. 01, 1994
3505 Thayer Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Aurora, IL
Encumbrances      
Initial Cost of Land 430 430
Building and Improvements 2,472 2,472
Costs capitalized subsequent to acquisition or completion and valuation provision 409 409
Land 430 430
Building and improvements 2,881 2,881
Total 3,311 3,311
Accumulated depreciation 12/31/2012 1,336 1,336
Year Acquired/ Constructed   Jan. 01, 1994
305-311 Era Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Northbrook, IL
Encumbrances      
Initial Cost of Land 200 200
Building and Improvements 1,154 1,154
Costs capitalized subsequent to acquisition or completion and valuation provision 953 953
Land 205 205
Building and improvements 2,102 2,102
Total 2,307 2,307
Accumulated depreciation 12/31/2012 666 666
Year Acquired/ Constructed   Jan. 01, 1994
3150-3160 MacArthur Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Northbrook, IL
Encumbrances      
Initial Cost of Land 429 429
Building and Improvements 2,518 2,518
Costs capitalized subsequent to acquisition or completion and valuation provision 125 125
Land 429 429
Building and improvements 2,643 2,643
Total 3,072 3,072
Accumulated depreciation 12/31/2012 1,217 1,217
Year Acquired/ Constructed   Jan. 01, 1994
365 North Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carol Stream, IL
Encumbrances 6,146 6,146
Initial Cost of Land 1,042 1,042
Building and Improvements 6,882 6,882
Costs capitalized subsequent to acquisition or completion and valuation provision 2,631 2,631
Land 1,073 1,073
Building and improvements 9,482 9,482
Total 10,555 10,555
Accumulated depreciation 12/31/2012 4,431 4,431
Year Acquired/ Constructed   Jan. 01, 1994
11241 Melrose Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin Park, IL
Encumbrances      
Initial Cost of Land 332 332
Building and Improvements 1,931 1,931
Costs capitalized subsequent to acquisition or completion and valuation provision 49 49
Land 208 208
Building and improvements 2,104 2,104
Total 2,312 2,312
Accumulated depreciation 12/31/2012 1,199 1,199
Year Acquired/ Constructed   Jan. 01, 1995
11939 South Central Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Alsip, IL
Encumbrances      
Initial Cost of Land 1,208 1,208
Building and Improvements 6,843 6,843
Costs capitalized subsequent to acquisition or completion and valuation provision 2,685 2,685
Land 1,305 1,305
Building and improvements 9,431 9,431
Total 10,736 10,736
Accumulated depreciation 12/31/2012 3,372 3,372
Year Acquired/ Constructed   Jan. 01, 1997
1010-50 Sesame Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bensenville, IL
Encumbrances      
Initial Cost of Land 979 979
Building and Improvements 5,546 5,546
Costs capitalized subsequent to acquisition or completion and valuation provision 3,812 3,812
Land 1,048 1,048
Building and improvements 9,289 9,289
Total 10,337 10,337
Accumulated depreciation 12/31/2012 2,877 2,877
Year Acquired/ Constructed   Jan. 01, 1997
2120-24 Roberts [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Broadview, IL
Encumbrances      
Initial Cost of Land 220 220
Building and Improvements 1,248 1,248
Costs capitalized subsequent to acquisition or completion and valuation provision 240 240
Land 231 231
Building and improvements 1,477 1,477
Total 1,708 1,708
Accumulated depreciation 12/31/2012 540 540
Year Acquired/ Constructed   Jan. 01, 1998
800 Business Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Mount Prospect, IL
Encumbrances      
Initial Cost of Land 631 631
Building and Improvements 3,493 3,493
Costs capitalized subsequent to acquisition or completion and valuation provision 328 328
Land 666 666
Building and improvements 3,786 3,786
Total 4,452 4,452
Accumulated depreciation 12/31/2012 1,132 1,132
Year Acquired/ Constructed   Jan. 01, 2000
580 Slawin Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Mount Prospect, IL
Encumbrances 827 827
Initial Cost of Land 233 233
Building and Improvements 1,292 1,292
Costs capitalized subsequent to acquisition or completion and valuation provision (37) (37)
Land 162 162
Building and improvements 1,326 1,326
Total 1,488 1,488
Accumulated depreciation 12/31/2012 459 459
Year Acquired/ Constructed   Jan. 01, 2000
1005 101st Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lemont, IL
Encumbrances 6,053 6,053
Initial Cost of Land 1,200 1,200
Building and Improvements 6,643 6,643
Costs capitalized subsequent to acquisition or completion and valuation provision 857 857
Land 1,220 1,220
Building and improvements 7,480 7,480
Total 8,700 8,700
Accumulated depreciation 12/31/2012 2,164 2,164
Year Acquired/ Constructed   Jan. 01, 2001
175 Wall Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glendale Heights, IL
Encumbrances 1,476 1,476
Initial Cost of Land 427 427
Building and Improvements 2,363 2,363
Costs capitalized subsequent to acquisition or completion and valuation provision 163 163
Land 433 433
Building and improvements 2,520 2,520
Total 2,953 2,953
Accumulated depreciation 12/31/2012 729 729
Year Acquired/ Constructed   Jan. 01, 2002
800-820 Thorndale Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bensenville, IL
Encumbrances      
Initial Cost of Land 751 751
Building and Improvements 4,159 4,159
Costs capitalized subsequent to acquisition or completion and valuation provision 2,174 2,174
Land 761 761
Building and improvements 6,323 6,323
Total 7,084 7,084
Accumulated depreciation 12/31/2012 2,397 2,397
Year Acquired/ Constructed   Jan. 01, 2002
251 Airport Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   North Aurora, IL
Encumbrances 5,242 5,242
Initial Cost of Land 983 983
Costs capitalized subsequent to acquisition or completion and valuation provision 6,770 6,770
Land 983 983
Building and improvements 6,770 6,770
Total 7,753 7,753
Accumulated depreciation 12/31/2012 1,853 1,853
Year Acquired/ Constructed   Jan. 01, 2002
1661 Feehanville Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Mount Prospect, IL
Encumbrances      
Initial Cost of Land 985 985
Building and Improvements 5,455 5,455
Costs capitalized subsequent to acquisition or completion and valuation provision 2,600 2,600
Land 1,044 1,044
Building and improvements 7,996 7,996
Total 9,040 9,040
Accumulated depreciation 12/31/2012 2,280 2,280
Year Acquired/ Constructed   Jan. 01, 2004
1850 Touhy & 1158-60 Mccabe Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Elk Grove Village, IL
Encumbrances      
Initial Cost of Land 1,500 1,500
Building and Improvements 4,842 4,842
Costs capitalized subsequent to acquisition or completion and valuation provision (105) (105)
Land 1,514 1,514
Building and improvements 4,723 4,723
Total 6,237 6,237
Accumulated depreciation 12/31/2012 1,326 1,326
Year Acquired/ Constructed   Jan. 01, 2004
1088-1130 Thorndale Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bensenville, IL
Encumbrances      
Initial Cost of Land 2,103 2,103
Building and Improvements 3,674 3,674
Costs capitalized subsequent to acquisition or completion and valuation provision 358 358
Land 2,108 2,108
Building and improvements 4,027 4,027
Total 6,135 6,135
Accumulated depreciation 12/31/2012 1,455 1,455
Year Acquired/ Constructed   Jan. 01, 2005
855-891 Busse (Route 83) [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bensenville, IL
Encumbrances      
Initial Cost of Land 1,597 1,597
Building and Improvements 2,767 2,767
Costs capitalized subsequent to acquisition or completion and valuation provision 67 67
Land 1,601 1,601
Building and improvements 2,830 2,830
Total 4,431 4,431
Accumulated depreciation 12/31/2012 968 968
Year Acquired/ Constructed   Jan. 01, 2005
1060-1074 W. Thorndale Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bensenville, IL
Encumbrances      
Initial Cost of Land 1,704 1,704
Building and Improvements 2,108 2,108
Costs capitalized subsequent to acquisition or completion and valuation provision 357 357
Land 1,709 1,709
Building and improvements 2,460 2,460
Total 4,169 4,169
Accumulated depreciation 12/31/2012 920 920
Year Acquired/ Constructed   Jan. 01, 2005
400 Crossroads Pkwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bolingbrook, IL
Encumbrances 5,561 5,561
Initial Cost of Land 1,178 1,178
Building and Improvements 9,453 9,453
Costs capitalized subsequent to acquisition or completion and valuation provision 1,014 1,014
Land 1,181 1,181
Building and improvements 10,464 10,464
Total 11,645 11,645
Accumulated depreciation 12/31/2012 2,638 2,638
Year Acquired/ Constructed   Jan. 01, 2005
7609 W. Industrial Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Forest Park, IL
Encumbrances      
Initial Cost of Land 1,207 1,207
Building and Improvements 2,343 2,343
Costs capitalized subsequent to acquisition or completion and valuation provision 81 81
Land 1,213 1,213
Building and improvements 2,418 2,418
Total 3,631 3,631
Accumulated depreciation 12/31/2012 846 846
Year Acquired/ Constructed   Jan. 01, 2005
7801 W. Industrial Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Forest Park, IL
Encumbrances      
Initial Cost of Land 1,215 1,215
Building and Improvements 3,020 3,020
Costs capitalized subsequent to acquisition or completion and valuation provision 468 468
Land 1,220 1,220
Building and improvements 3,483 3,483
Total 4,703 4,703
Accumulated depreciation 12/31/2012 1,039 1,039
Year Acquired/ Constructed   Jan. 01, 2005
825 E. 26th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   LaGrange, IL
Encumbrances      
Initial Cost of Land 1,547 1,547
Building and Improvements 2,078 2,078
Costs capitalized subsequent to acquisition or completion and valuation provision 2,649 2,649
Land 1,617 1,617
Building and improvements 4,657 4,657
Total 6,274 6,274
Accumulated depreciation 12/31/2012 1,911 1,911
Year Acquired/ Constructed   Jan. 01, 2005
725 Kimberly Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carol Stream, IL
Encumbrances      
Initial Cost of Land 793 793
Building and Improvements 1,395 1,395
Costs capitalized subsequent to acquisition or completion and valuation provision 207 207
Land 801 801
Building and improvements 1,594 1,594
Total 2,395 2,395
Accumulated depreciation 12/31/2012 478 478
Year Acquired/ Constructed   Jan. 01, 2005
17001 S. Vincennes [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thornton, IL
Encumbrances      
Initial Cost of Land 497 497
Building and Improvements 504 504
Costs capitalized subsequent to acquisition or completion and valuation provision 37 37
Land 513 513
Building and improvements 525 525
Total 1,038 1,038
Accumulated depreciation 12/31/2012 290 290
Year Acquired/ Constructed   Jan. 01, 2005
1111 Davis Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Elgin, IL
Encumbrances 2,787 2,787
Initial Cost of Land 998 998
Building and Improvements 1,859 1,859
Costs capitalized subsequent to acquisition or completion and valuation provision 998 998
Land 1,046 1,046
Building and improvements 2,809 2,809
Total 3,855 3,855
Accumulated depreciation 12/31/2012 1,439 1,439
Year Acquired/ Constructed   Jan. 01, 2006
2900 W. 166th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Markham, IL
Encumbrances      
Initial Cost of Land 1,132 1,132
Building and Improvements 4,293 4,293
Costs capitalized subsequent to acquisition or completion and valuation provision 723 723
Land 1,134 1,134
Building and improvements 5,014 5,014
Total 6,148 6,148
Accumulated depreciation 12/31/2012 1,775 1,775
Year Acquired/ Constructed   Jan. 01, 2007
555 W. Algonquin Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington Heights, IL
Encumbrances      
Initial Cost of Land 574 574
Building and Improvements 741 741
Costs capitalized subsequent to acquisition or completion and valuation provision 1,936 1,936
Land 579 579
Building and improvements 2,672 2,672
Total 3,251 3,251
Accumulated depreciation 12/31/2012 512 512
Year Acquired/ Constructed   Jan. 01, 2007
7000 W. 60th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Chicago, IL
Encumbrances      
Initial Cost of Land 609 609
Building and Improvements 932 932
Costs capitalized subsequent to acquisition or completion and valuation provision 237 237
Land 667 667
Building and improvements 1,111 1,111
Total 1,778 1,778
Accumulated depreciation 12/31/2012 708 708
Year Acquired/ Constructed   Jan. 01, 2007
9501 Nevada [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin Park, IL
Encumbrances 7,440 7,440
Initial Cost of Land 2,721 2,721
Building and Improvements 5,630 5,630
Costs capitalized subsequent to acquisition or completion and valuation provision 101 101
Land 2,737 2,737
Building and improvements 5,715 5,715
Total 8,452 8,452
Accumulated depreciation 12/31/2012 1,169 1,169
Year Acquired/ Constructed   Jan. 01, 2008
1501 Oakton Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Elk Grove Village, IL
Encumbrances 8,753 8,753
Initial Cost of Land 3,369 3,369
Building and Improvements 6,121 6,121
Costs capitalized subsequent to acquisition or completion and valuation provision 139 139
Land 3,482 3,482
Building and improvements 6,147 6,147
Total 9,629 9,629
Accumulated depreciation 12/31/2012 1,543 1,543
Year Acquired/ Constructed   Jan. 01, 2008
16500 W. 103rd Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Woodridge, IL
Encumbrances 2,647 2,647
Initial Cost of Land 744 744
Building and Improvements 2,458 2,458
Costs capitalized subsequent to acquisition or completion and valuation provision 355 355
Land 762 762
Building and improvements 2,796 2,796
Total 3,558 3,558
Accumulated depreciation 12/31/2012 599 599
Year Acquired/ Constructed   Jan. 01, 2008
8505 50th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Kenosha, WI
Encumbrances 13,879 13,879
Initial Cost of Land 4,100 4,100
Costs capitalized subsequent to acquisition or completion and valuation provision 24,072 24,072
Land 3,212 3,212
Building and improvements 24,960 24,960
Total 28,172 28,172
Accumulated depreciation 12/31/2012 3,046 3,046
Year Acquired/ Constructed   Jan. 01, 2008
9900-9970 Princeton [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Cincinnati, OH
Encumbrances 3,621 3,621
Initial Cost of Land 545 545
Building and Improvements 3,088 3,088
Costs capitalized subsequent to acquisition or completion and valuation provision 1,571 1,571
Land 566 566
Building and improvements 4,638 4,638
Total 5,204 5,204
Accumulated depreciation 12/31/2012 1,842 1,842
Year Acquired/ Constructed   Jan. 01, 1996
2940 Highland [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Cincinnati, OH
Encumbrances      
Initial Cost of Land 1,717 1,717
Building and Improvements 9,730 9,730
Costs capitalized subsequent to acquisition or completion and valuation provision 14 14
Land 1,146 1,146
Building and improvements 10,315 10,315
Total 11,461 11,461
Accumulated depreciation 12/31/2012 4,768 4,768
Year Acquired/ Constructed   Jan. 01, 1996
4700-4750 Creek Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Blue Ash, OH
Encumbrances      
Initial Cost of Land 1,080 1,080
Building and Improvements 6,118 6,118
Costs capitalized subsequent to acquisition or completion and valuation provision 1,272 1,272
Land 1,109 1,109
Building and improvements 7,361 7,361
Total 8,470 8,470
Accumulated depreciation 12/31/2012 2,877 2,877
Year Acquired/ Constructed   Jan. 01, 1996
4436 Mulhauser Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hamilton, OH
Encumbrances 3,728 3,728
Initial Cost of Land 630 630
Costs capitalized subsequent to acquisition or completion and valuation provision 5,077 5,077
Land 630 630
Building and improvements 5,077 5,077
Total 5,707 5,707
Accumulated depreciation 12/31/2012 1,275 1,275
Year Acquired/ Constructed   Jan. 01, 2002
4438 Mulhauser Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hamilton, OH
Encumbrances 4,722 4,722
Initial Cost of Land 779 779
Costs capitalized subsequent to acquisition or completion and valuation provision 6,407 6,407
Land 779 779
Building and improvements 6,407 6,407
Total 7,186 7,186
Accumulated depreciation 12/31/2012 1,752 1,752
Year Acquired/ Constructed   Jan. 01, 2002
420 Wards Corner Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Loveland, OH
Encumbrances      
Initial Cost of Land 600 600
Building and Improvements 1,083 1,083
Costs capitalized subsequent to acquisition or completion and valuation provision 539 539
Land 606 606
Building and improvements 1,616 1,616
Total 2,222 2,222
Accumulated depreciation 12/31/2012 452 452
Year Acquired/ Constructed   Jan. 01, 2003
422 Wards Corner Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Loveland, OH
Encumbrances      
Initial Cost of Land 600 600
Building and Improvements 1,811 1,811
Costs capitalized subsequent to acquisition or completion and valuation provision (156) (156)
Land 592 592
Building and improvements 1,663 1,663
Total 2,255 2,255
Accumulated depreciation 12/31/2012 442 442
Year Acquired/ Constructed   Jan. 01, 2003
4663 Dues Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 858 858
Building and Improvements 2,273 2,273
Costs capitalized subsequent to acquisition or completion and valuation provision 825 825
Land 875 875
Building and improvements 3,081 3,081
Total 3,956 3,956
Accumulated depreciation 12/31/2012 2,284 2,284
Year Acquired/ Constructed   Jan. 01, 2005
9345 Princeton-Glendale [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances 1,510 1,510
Initial Cost of Land 818 818
Building and Improvements 1,648 1,648
Costs capitalized subsequent to acquisition or completion and valuation provision 317 317
Land 840 840
Building and improvements 1,943 1,943
Total 2,783 2,783
Accumulated depreciation 12/31/2012 810 810
Year Acquired/ Constructed   Jan. 01, 2006
9525 Glades Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 347 347
Building and Improvements 1,323 1,323
Costs capitalized subsequent to acquisition or completion and valuation provision 99 99
Land 355 355
Building and improvements 1,414 1,414
Total 1,769 1,769
Accumulated depreciation 12/31/2012 385 385
Year Acquired/ Constructed   Jan. 01, 2007
9776-9876 Windisch Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 392 392
Building and Improvements 1,744 1,744
Costs capitalized subsequent to acquisition or completion and valuation provision (9) (9)
Land 394 394
Building and improvements 1,733 1,733
Total 2,127 2,127
Accumulated depreciation 12/31/2012 405 405
Year Acquired/ Constructed   Oct. 01, 2007
9808-9830 Windisch Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 395 395
Building and Improvements 2,541 2,541
Costs capitalized subsequent to acquisition or completion and valuation provision 33 33
Land 397 397
Building and improvements 2,572 2,572
Total 2,969 2,969
Accumulated depreciation 12/31/2012 467 467
Year Acquired/ Constructed   Jan. 01, 2007
9842-9862 Windisch Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 506 506
Building and Improvements 3,148 3,148
Costs capitalized subsequent to acquisition or completion and valuation provision 76 76
Land 508 508
Building and improvements 3,222 3,222
Total 3,730 3,730
Accumulated depreciation 12/31/2012 586 586
Year Acquired/ Constructed   Jan. 01, 2007
9872-9898 Windisch Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 546 546
Building and Improvements 3,039 3,039
Costs capitalized subsequent to acquisition or completion and valuation provision 81 81
Land 548 548
Building and improvements 3,118 3,118
Total 3,666 3,666
Accumulated depreciation 12/31/2012 599 599
Year Acquired/ Constructed   Jan. 01, 2007
9902-9922 Windisch Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westchester, OH
Encumbrances      
Initial Cost of Land 623 623
Building and Improvements 4,003 4,003
Costs capitalized subsequent to acquisition or completion and valuation provision 368 368
Land 627 627
Building and improvements 4,367 4,367
Total 4,994 4,994
Accumulated depreciation 12/31/2012 974 974
Year Acquired/ Constructed   Jan. 01, 2007
30311 Emerald Valley Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glenwillow, OH
Encumbrances 9,467 9,467
Initial Cost of Land 681 681
Building and Improvements 11,838 11,838
Costs capitalized subsequent to acquisition or completion and valuation provision 993 993
Land 691 691
Building and improvements 12,821 12,821
Total 13,512 13,512
Accumulated depreciation 12/31/2012 3,029 3,029
Year Acquired/ Constructed   Jan. 01, 2006
30333 Emerald Valley Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glenwillow, OH
Encumbrances 4,911 4,911
Initial Cost of Land 466 466
Building and Improvements 5,447 5,447
Costs capitalized subsequent to acquisition or completion and valuation provision 174 174
Land 475 475
Building and improvements 5,612 5,612
Total 6,087 6,087
Accumulated depreciation 12/31/2012 1,565 1,565
Year Acquired/ Constructed   Jan. 01, 2006
7800 Cochran Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glenwillow, OH
Encumbrances 6,886 6,886
Initial Cost of Land 972 972
Building and Improvements 7,033 7,033
Costs capitalized subsequent to acquisition or completion and valuation provision 327 327
Land 991 991
Building and improvements 7,341 7,341
Total 8,332 8,332
Accumulated depreciation 12/31/2012 1,820 1,820
Year Acquired/ Constructed   Jan. 01, 2006
7900 Cochran Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glenwillow, OH
Encumbrances 5,326 5,326
Initial Cost of Land 775 775
Building and Improvements 6,244 6,244
Costs capitalized subsequent to acquisition or completion and valuation provision 127 127
Land 792 792
Building and improvements 6,354 6,354
Total 7,146 7,146
Accumulated depreciation 12/31/2012 1,503 1,503
Year Acquired/ Constructed   Jan. 01, 2006
7905 Cochran Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glenwillow, OH
Encumbrances      
Initial Cost of Land 920 920
Building and Improvements 6,174 6,174
Costs capitalized subsequent to acquisition or completion and valuation provision 341 341
Land 921 921
Building and improvements 6,514 6,514
Total 7,435 7,435
Accumulated depreciation 12/31/2012 1,625 1,625
Year Acquired/ Constructed   Jan. 01, 2006
30600 Carter Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Solon, OH
Encumbrances      
Initial Cost of Land 989 989
Building and Improvements 3,042 3,042
Costs capitalized subsequent to acquisition or completion and valuation provision 391 391
Land 1,022 1,022
Building and improvements 3,400 3,400
Total 4,422 4,422
Accumulated depreciation 12/31/2012 1,830 1,830
Year Acquired/ Constructed   Jan. 01, 2006
8181 Darrow Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Twinsburg, OH
Encumbrances 7,366 7,366
Initial Cost of Land 2,478 2,478
Building and Improvements 6,791 6,791
Costs capitalized subsequent to acquisition or completion and valuation provision 2,007 2,007
Land 2,496 2,496
Building and improvements 8,781 8,781
Total 11,277 11,277
Accumulated depreciation 12/31/2012 2,260 2,260
Year Acquired/ Constructed   Jan. 01, 2008
4785 Elati [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 173 173
Building and Improvements 981 981
Costs capitalized subsequent to acquisition or completion and valuation provision 127 127
Land 175 175
Building and improvements 1,106 1,106
Total 1,281 1,281
Accumulated depreciation 12/31/2012 335 335
Year Acquired/ Constructed   Jan. 01, 1997
4770 Fox Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 132 132
Building and Improvements 750 750
Costs capitalized subsequent to acquisition or completion and valuation provision 209 209
Land 134 134
Building and improvements 957 957
Total 1,091 1,091
Accumulated depreciation 12/31/2012 340 340
Year Acquired/ Constructed   Jan. 01, 1997
3851-3871 Revere [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,285 1,285
Initial Cost of Land 361 361
Building and Improvements 2,047 2,047
Costs capitalized subsequent to acquisition or completion and valuation provision 283 283
Land 368 368
Building and improvements 2,323 2,323
Total 2,691 2,691
Accumulated depreciation 12/31/2012 838 838
Year Acquired/ Constructed   Jan. 01, 1997
4570 Ivy Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,075 1,075
Initial Cost of Land 219 219
Building and Improvements 1,239 1,239
Costs capitalized subsequent to acquisition or completion and valuation provision 216 216
Land 220 220
Building and improvements 1,454 1,454
Total 1,674 1,674
Accumulated depreciation 12/31/2012 527 527
Year Acquired/ Constructed   Jan. 01, 1997
5855 Stapleton Drive North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,369 1,369
Initial Cost of Land 288 288
Building and Improvements 1,630 1,630
Costs capitalized subsequent to acquisition or completion and valuation provision 214 214
Land 290 290
Building and improvements 1,842 1,842
Total 2,132 2,132
Accumulated depreciation 12/31/2012 650 650
Year Acquired/ Constructed   Jan. 01, 1997
5885 Stapleton Drive North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,806 1,806
Initial Cost of Land 376 376
Building and Improvements 2,129 2,129
Costs capitalized subsequent to acquisition or completion and valuation provision 307 307
Land 380 380
Building and improvements 2,432 2,432
Total 2,812 2,812
Accumulated depreciation 12/31/2012 949 949
Year Acquired/ Constructed   Jan. 01, 1997
5977 North Broadway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,418 1,418
Initial Cost of Land 268 268
Building and Improvements 1,518 1,518
Costs capitalized subsequent to acquisition or completion and valuation provision 384 384
Land 271 271
Building and improvements 1,899 1,899
Total 2,170 2,170
Accumulated depreciation 12/31/2012 652 652
Year Acquired/ Constructed   Jan. 01, 1997
5952-5978 North Broadway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 2,401 2,401
Initial Cost of Land 414 414
Building and Improvements 2,346 2,346
Costs capitalized subsequent to acquisition or completion and valuation provision 916 916
Land 422 422
Building and improvements 3,254 3,254
Total 3,676 3,676
Accumulated depreciation 12/31/2012 1,207 1,207
Year Acquired/ Constructed   Jan. 01, 1997
4721 Ironton Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 232 232
Building and Improvements 1,313 1,313
Costs capitalized subsequent to acquisition or completion and valuation provision 23 23
Land 236 236
Building and improvements 1,332 1,332
Total 1,568 1,568
Accumulated depreciation 12/31/2012 447 447
Year Acquired/ Constructed   Jan. 01, 1997
7003 E 47th Ave Drive [Member ]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 441 441
Building and Improvements 2,689 2,689
Costs capitalized subsequent to acquisition or completion and valuation provision (10) (10)
Land 441 441
Building and improvements 2,679 2,679
Total 3,120 3,120
Accumulated depreciation 12/31/2012 1,023 1,023
Year Acquired/ Constructed   Jan. 01, 1997
9500 West 49th Street - A [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Wheatridge, CO
Initial Cost of Land 283 283
Building and Improvements 1,625 1,625
Costs capitalized subsequent to acquisition or completion and valuation provision 71 71
Land 287 287
Building and improvements 1,692 1,692
Total 1,979 1,979
Accumulated depreciation 12/31/2012 671 671
Year Acquired/ Constructed   Jan. 01, 1997
9500 West 49th Street - B [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Wheatridge, CO
Initial Cost of Land 225 225
Building and Improvements 1,272 1,272
Costs capitalized subsequent to acquisition or completion and valuation provision 115 115
Land 227 227
Building and improvements 1,385 1,385
Total 1,612 1,612
Accumulated depreciation 12/31/2012 510 510
Year Acquired/ Constructed   Jan. 01, 1997
9500 West 49th Street - C [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Wheatridge, CO
Initial Cost of Land 600 600
Building and Improvements 3,409 3,409
Costs capitalized subsequent to acquisition or completion and valuation provision 114 114
Land 601 601
Building and improvements 3,522 3,522
Total 4,123 4,123
Accumulated depreciation 12/31/2012 1,359 1,359
Year Acquired/ Constructed   Jan. 01, 1997
9500 West 49th Street - D [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Wheatridge, CO
Initial Cost of Land 246 246
Building and Improvements 1,537 1,537
Costs capitalized subsequent to acquisition or completion and valuation provision 378 378
Land 247 247
Building and improvements 1,914 1,914
Total 2,161 2,161
Accumulated depreciation 12/31/2012 794 794
Year Acquired/ Constructed   Jan. 01, 1997
451-591 East 124th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Littleton, CO
Initial Cost of Land 383 383
Building and Improvements 2,145 2,145
Costs capitalized subsequent to acquisition or completion and valuation provision 161 161
Land 383 383
Building and improvements 2,306 2,306
Total 2,689 2,689
Accumulated depreciation 12/31/2012 798 798
Year Acquired/ Constructed   Jan. 01, 1997
15000 West 6th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Golden, CO
Initial Cost of Land 913 913
Building and Improvements 5,174 5,174
Costs capitalized subsequent to acquisition or completion and valuation provision 951 951
Land 918 918
Building and improvements 6,120 6,120
Total 7,038 7,038
Accumulated depreciation 12/31/2012 2,238 2,238
Year Acquired/ Constructed   Jan. 01, 1997
14998 West 6th Avenue Bldg E [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Golden, CO
Initial Cost of Land 565 565
Building and Improvements 3,199 3,199
Costs capitalized subsequent to acquisition or completion and valuation provision 341 341
Land 570 570
Building and improvements 3,535 3,535
Total 4,105 4,105
Accumulated depreciation 12/31/2012 1,373 1,373
Year Acquired/ Constructed   Jan. 01, 1997
14998 West 6 th Avenue Bldg F [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Englewood, CO
Initial Cost of Land 269 269
Building and Improvements 1,525 1,525
Costs capitalized subsequent to acquisition or completion and valuation provision 104 104
Land 273 273
Building and improvements 1,625 1,625
Total 1,898 1,898
Accumulated depreciation 12/31/2012 611 611
Year Acquired/ Constructed   Jan. 01, 1997
12503 East Euclid Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 1,208 1,208
Building and Improvements 6,905 6,905
Costs capitalized subsequent to acquisition or completion and valuation provision 587 587
Land 1,036 1,036
Building and improvements 7,664 7,664
Total 8,700 8,700
Accumulated depreciation 12/31/2012 3,243 3,243
Year Acquired/ Constructed   Jan. 01, 1997
6547 South Racine Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Englewood, CO
Encumbrances 2,944 2,944
Initial Cost of Land 739 739
Building and Improvements 4,241 4,241
Costs capitalized subsequent to acquisition or completion and valuation provision 313 313
Land 739 739
Building and improvements 4,554 4,554
Total 5,293 5,293
Accumulated depreciation 12/31/2012 1,786 1,786
Year Acquired/ Constructed   Jan. 01, 1997
11701 East 53rd Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 416 416
Building and Improvements 2,355 2,355
Costs capitalized subsequent to acquisition or completion and valuation provision 307 307
Land 422 422
Building and improvements 2,656 2,656
Total 3,078 3,078
Accumulated depreciation 12/31/2012 955 955
Year Acquired/ Constructed   Jan. 01, 1997
5401 Oswego [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 273 273
Building and Improvements 1,547 1,547
Costs capitalized subsequent to acquisition or completion and valuation provision 354 354
Land 278 278
Building and improvements 1,896 1,896
Total 2,174 2,174
Accumulated depreciation 12/31/2012 745 745
Year Acquired/ Constructed   Jan. 01, 1997
14818 West 6th Avenue Bldg A [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Golden, CO
Initial Cost of Land 468 468
Building and Improvements 2,799 2,799
Costs capitalized subsequent to acquisition or completion and valuation provision 236 236
Land 468 468
Building and improvements 3,035 3,035
Total 3,503 3,503
Accumulated depreciation 12/31/2012 1,187 1,187
Year Acquired/ Constructed   Jan. 01, 1997
14828 West 6th Avenue Bldg B [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Golden, CO
Initial Cost of Land 503 503
Building and Improvements 2,942 2,942
Costs capitalized subsequent to acquisition or completion and valuation provision 286 286
Land 503 503
Building and improvements 3,228 3,228
Total 3,731 3,731
Accumulated depreciation 12/31/2012 1,156 1,156
Year Acquired/ Constructed   Jan. 01, 1997
445 Bryant Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 7,045 7,045
Initial Cost of Land 1,829 1,829
Building and Improvements 10,219 10,219
Costs capitalized subsequent to acquisition or completion and valuation provision 2,703 2,703
Land 1,829 1,829
Building and improvements 12,922 12,922
Total 14,751 14,751
Accumulated depreciation 12/31/2012 4,580 4,580
Year Acquired/ Constructed   Jan. 01, 1998
3811 Joliet [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 735 735
Building and Improvements 4,166 4,166
Costs capitalized subsequent to acquisition or completion and valuation provision 448 448
Land 752 752
Building and improvements 4,597 4,597
Total 5,349 5,349
Accumulated depreciation 12/31/2012 1,683 1,683
Year Acquired/ Constructed   Jan. 01, 1998
12055 E 49th Ave/4955 Peoria [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 298 298
Building and Improvements 1,688 1,688
Costs capitalized subsequent to acquisition or completion and valuation provision 526 526
Land 305 305
Building and improvements 2,207 2,207
Total 2,512 2,512
Accumulated depreciation 12/31/2012 821 821
Year Acquired/ Constructed   Jan. 01, 1998
4940 - 4950 Paris [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 152 152
Building and Improvements 861 861
Costs capitalized subsequent to acquisition or completion and valuation provision 285 285
Land 156 156
Building and improvements 1,142 1,142
Total 1,298 1,298
Accumulated depreciation 12/31/2012 384 384
Year Acquired/ Constructed   Jan. 01, 1998
4970 Paris [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Initial Cost of Land 95 95
Building and Improvements 537 537
Costs capitalized subsequent to acquisition or completion and valuation provision 101 101
Land 97 97
Building and improvements 636 636
Total 733 733
Accumulated depreciation 12/31/2012 233 233
Year Acquired/ Constructed   Jan. 01, 1998
7367 South Revere Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Englewood, CO
Encumbrances 3,345 3,345
Initial Cost of Land 926 926
Building and Improvements 5,124 5,124
Costs capitalized subsequent to acquisition or completion and valuation provision 953 953
Land 934 934
Building and improvements 6,069 6,069
Total 7,003 7,003
Accumulated depreciation 12/31/2012 2,414 2,414
Year Acquired/ Constructed   Jan. 01, 1998
8200 East Park Meadows Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lone Tree, CO
Initial Cost of Land 1,297 1,297
Building and Improvements 7,348 7,348
Costs capitalized subsequent to acquisition or completion and valuation provision 1,045 1,045
Land 1,304 1,304
Building and improvements 8,386 8,386
Total 9,690 9,690
Accumulated depreciation 12/31/2012 2,419 2,419
Year Acquired/ Constructed   Jan. 01, 2000
3250 Quentin Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Aurora, CO
Initial Cost of Land 1,220 1,220
Building and Improvements 6,911 6,911
Costs capitalized subsequent to acquisition or completion and valuation provision 721 721
Land 1,230 1,230
Building and improvements 7,622 7,622
Total 8,852 8,852
Accumulated depreciation 12/31/2012 2,398 2,398
Year Acquired/ Constructed   Jan. 01, 2000
Highpoint Bus Ctr B [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Littleton, CO
Initial Cost of Land 739 739
Costs capitalized subsequent to acquisition or completion and valuation provision 3,406 3,406
Land 781 781
Building and improvements 3,364 3,364
Total 4,145 4,145
Accumulated depreciation 12/31/2012 1,079 1,079
Year Acquired/ Constructed   Jan. 01, 2000
1130 W. 124th Ave. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westminster, CO
Initial Cost of Land 441 441
Costs capitalized subsequent to acquisition or completion and valuation provision 3,379 3,379
Land 441 441
Building and improvements 3,379 3,379
Total 3,820 3,820
Accumulated depreciation 12/31/2012 1,017 1,017
Year Acquired/ Constructed   Jan. 01, 2000
1070 W. 124th Ave. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westminster, CO
Initial Cost of Land 374 374
Costs capitalized subsequent to acquisition or completion and valuation provision 2,894 2,894
Land 374 374
Building and improvements 2,894 2,894
Total 3,268 3,268
Accumulated depreciation 12/31/2012 853 853
Year Acquired/ Constructed   Jan. 01, 2000
1020 W. 124th Ave. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westminster, CO
Initial Cost of Land 374 374
Costs capitalized subsequent to acquisition or completion and valuation provision 2,827 2,827
Land 374 374
Building and improvements 2,827 2,827
Total 3,201 3,201
Accumulated depreciation 12/31/2012 815 815
Year Acquired/ Constructed   Jan. 01, 2000
8810 W. 116th Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Broomfield, CO
Initial Cost of Land 312 312
Costs capitalized subsequent to acquisition or completion and valuation provision 1,330 1,330
Land 370 370
Building and improvements 1,272 1,272
Total 1,642 1,642
Accumulated depreciation 12/31/2012 284 284
Year Acquired/ Constructed   Jan. 01, 2001
960 W. 124th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Westminster, CO
Initial Cost of Land 441 441
Costs capitalized subsequent to acquisition or completion and valuation provision 3,442 3,442
Land 442 442
Building and improvements 3,441 3,441
Total 3,883 3,883
Accumulated depreciation 12/31/2012 1,037 1,037
Year Acquired/ Constructed   Jan. 01, 2001
8820 W. 116th Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Broomfield, CO
Initial Cost of Land 338 338
Building and Improvements 1,918 1,918
Costs capitalized subsequent to acquisition or completion and valuation provision 350 350
Land 372 372
Building and improvements 2,234 2,234
Total 2,606 2,606
Accumulated depreciation 12/31/2012 561 561
Year Acquired/ Constructed   Jan. 01, 2003
8835 W. 116th Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Broomfield, CO
Initial Cost of Land 1,151 1,151
Building and Improvements 6,523 6,523
Costs capitalized subsequent to acquisition or completion and valuation provision 1,315 1,315
Land 1,304 1,304
Building and improvements 7,685 7,685
Total 8,989 8,989
Accumulated depreciation 12/31/2012 1,925 1,925
Year Acquired/ Constructed   Jan. 01, 2003
18150 E. 32nd Place [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Aurora, CO
Encumbrances 1,941 1,941
Initial Cost of Land 563 563
Building and Improvements 3,188 3,188
Costs capitalized subsequent to acquisition or completion and valuation provision 314 314
Land 572 572
Building and improvements 3,493 3,493
Total 4,065 4,065
Accumulated depreciation 12/31/2012 964 964
Year Acquired/ Constructed   Jan. 01, 2004
3400 Fraser Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Aurora, CO
Encumbrances 2,372 2,372
Initial Cost of Land 616 616
Building and Improvements 3,593 3,593
Costs capitalized subsequent to acquisition or completion and valuation provision (203) (203)
Land 620 620
Building and improvements 3,386 3,386
Total 4,006 4,006
Accumulated depreciation 12/31/2012 796 796
Year Acquired/ Constructed   Jan. 01, 2005
7005 E. 46th Avenue Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 1,476 1,476
Initial Cost of Land 512 512
Building and Improvements 2,025 2,025
Costs capitalized subsequent to acquisition or completion and valuation provision 94 94
Land 517 517
Building and improvements 2,114 2,114
Total 2,631 2,631
Accumulated depreciation 12/31/2012 585 585
Year Acquired/ Constructed   Jan. 01, 2005
4001 Salazar Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Frederick, CO
Encumbrances 4,119 4,119
Initial Cost of Land 1,271 1,271
Building and Improvements 6,508 6,508
Costs capitalized subsequent to acquisition or completion and valuation provision (88) (88)
Land 1,276 1,276
Building and improvements 6,415 6,415
Total 7,691 7,691
Accumulated depreciation 12/31/2012 1,591 1,591
Year Acquired/ Constructed   Jan. 01, 2006
5909-5915 N. Broadway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Denver, CO
Encumbrances 941 941
Initial Cost of Land 495 495
Building and Improvements 1,268 1,268
Costs capitalized subsequent to acquisition or completion and valuation provision 85 85
Land 500 500
Building and improvements 1,348 1,348
Total 1,848 1,848
Accumulated depreciation 12/31/2012 448 448
Year Acquired/ Constructed   Jan. 01, 2006
555 Corporate Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Golden, CO
Initial Cost of Land 499 499
Building and Improvements 2,673 2,673
Costs capitalized subsequent to acquisition or completion and valuation provision 2,528 2,528
Land 559 559
Building and improvements 5,141 5,141
Total 5,700 5,700
Accumulated depreciation 12/31/2012 955 955
Year Acquired/ Constructed   Jan. 01, 2006
2406-2416 Walnut Ridge [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Initial Cost of Land 178 178
Building and Improvements 1,006 1,006
Costs capitalized subsequent to acquisition or completion and valuation provision 622 622
Land 172 172
Building and improvements 1,634 1,634
Total 1,806 1,806
Accumulated depreciation 12/31/2012 502 502
Year Acquired/ Constructed   Jan. 01, 1997
2401-2419 Walnut Ridge [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Initial Cost of Land 148 148
Building and Improvements 839 839
Costs capitalized subsequent to acquisition or completion and valuation provision 398 398
Land 142 142
Building and improvements 1,243 1,243
Total 1,385 1,385
Accumulated depreciation 12/31/2012 355 355
Year Acquired/ Constructed   Jan. 01, 1997
900-906 Great Southwest Pkwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Initial Cost of Land 237 237
Building and Improvements 1,342 1,342
Costs capitalized subsequent to acquisition or completion and valuation provision 628 628
Land 270 270
Building and improvements 1,937 1,937
Total 2,207 2,207
Accumulated depreciation 12/31/2012 676 676
Year Acquired/ Constructed   Jan. 01, 1997
3000 West Commerce [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Initial Cost of Land 456 456
Building and Improvements 2,584 2,584
Costs capitalized subsequent to acquisition or completion and valuation provision 1,110 1,110
Land 469 469
Building and improvements 3,681 3,681
Total 4,150 4,150
Accumulated depreciation 12/31/2012 1,296 1,296
Year Acquired/ Constructed   Jan. 01, 1997
3030 Hansboro [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Initial Cost of Land 266 266
Building and Improvements 1,510 1,510
Costs capitalized subsequent to acquisition or completion and valuation provision (619) (619)
Land 87 87
Building and improvements 1,070 1,070
Total 1,157 1,157
Accumulated depreciation 12/31/2012 656 656
Year Acquired/ Constructed   Jan. 01, 1997
405-407 113th [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Initial Cost of Land 181 181
Building and Improvements 1,026 1,026
Costs capitalized subsequent to acquisition or completion and valuation provision 588 588
Land 185 185
Building and improvements 1,610 1,610
Total 1,795 1,795
Accumulated depreciation 12/31/2012 552 552
Year Acquired/ Constructed   Jan. 01, 1997
816 111th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Encumbrances 892 892
Initial Cost of Land 251 251
Building and Improvements 1,421 1,421
Costs capitalized subsequent to acquisition or completion and valuation provision 195 195
Land 258 258
Building and improvements 1,609 1,609
Total 1,867 1,867
Accumulated depreciation 12/31/2012 566 566
Year Acquired/ Constructed   Jan. 01, 1997
7427 Dogwood Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 96 96
Building and Improvements 532 532
Costs capitalized subsequent to acquisition or completion and valuation provision 302 302
Land 102 102
Building and improvements 828 828
Total 930 930
Accumulated depreciation 12/31/2012 249 249
Year Acquired/ Constructed   Jan. 01, 1998
7348-54 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 88 88
Building and Improvements 489 489
Costs capitalized subsequent to acquisition or completion and valuation provision 213 213
Land 94 94
Building and improvements 696 696
Total 790 790
Accumulated depreciation 12/31/2012 223 223
Year Acquired/ Constructed   Jan. 01, 1998
7339-41 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 98 98
Building and Improvements 541 541
Costs capitalized subsequent to acquisition or completion and valuation provision 179 179
Land 104 104
Building and improvements 714 714
Total 818 818
Accumulated depreciation 12/31/2012 235 235
Year Acquired/ Constructed   Jan. 01, 1998
7437-45 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 102 102
Building and Improvements 563 563
Costs capitalized subsequent to acquisition or completion and valuation provision 258 258
Land 108 108
Building and improvements 815 815
Total 923 923
Accumulated depreciation 12/31/2012 236 236
Year Acquired/ Constructed   Jan. 01, 1998
7331-59 Airport Freeway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Encumbrances 1,739 1,739
Initial Cost of Land 354 354
Building and Improvements 1,958 1,958
Costs capitalized subsequent to acquisition or completion and valuation provision 350 350
Land 372 372
Building and improvements 2,290 2,290
Total 2,662 2,662
Accumulated depreciation 12/31/2012 822 822
Year Acquired/ Constructed   Jan. 01, 1998
7338-60 Dogwood Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 106 106
Building and Improvements 587 587
Costs capitalized subsequent to acquisition or completion and valuation provision 234 234
Land 112 112
Building and improvements 815 815
Total 927 927
Accumulated depreciation 12/31/2012 241 241
Year Acquired/ Constructed   Jan. 01, 1998
7450-70 Dogwood Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 106 106
Building and Improvements 584 584
Costs capitalized subsequent to acquisition or completion and valuation provision 124 124
Land 112 112
Building and improvements 702 702
Total 814 814
Accumulated depreciation 12/31/2012 254 254
Year Acquired/ Constructed   Jan. 01, 1998
7423-49 Airport Freeway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Encumbrances 1,559 1,559
Initial Cost of Land 293 293
Building and Improvements 1,621 1,621
Costs capitalized subsequent to acquisition or completion and valuation provision 472 472
Land 308 308
Building and improvements 2,078 2,078
Total 2,386 2,386
Accumulated depreciation 12/31/2012 673 673
Year Acquired/ Constructed   Jan. 01, 1998
7400 Whitehall Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 109 109
Building and Improvements 603 603
Costs capitalized subsequent to acquisition or completion and valuation provision 95 95
Land 115 115
Building and improvements 692 692
Total 807 807
Accumulated depreciation 12/31/2012 231 231
Year Acquired/ Constructed   Jan. 01, 1998
1602-1654 Terre Colony [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Encumbrances 1,859 1,859
Initial Cost of Land 458 458
Building and Improvements 2,596 2,596
Costs capitalized subsequent to acquisition or completion and valuation provision 838 838
Land 468 468
Building and improvements 3,424 3,424
Total 3,892 3,892
Accumulated depreciation 12/31/2012 1,007 1,007
Year Acquired/ Constructed   Jan. 01, 2000
2351-2355 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 101 101
Building and Improvements 574 574
Costs capitalized subsequent to acquisition or completion and valuation provision 91 91
Land 92 92
Building and improvements 674 674
Total 766 766
Accumulated depreciation 12/31/2012 223 223
Year Acquired/ Constructed   Jan. 01, 2000
2220 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 352 352
Building and Improvements 1,993 1,993
Costs capitalized subsequent to acquisition or completion and valuation provision 843 843
Land 316 316
Building and improvements 2,872 2,872
Total 3,188 3,188
Accumulated depreciation 12/31/2012 1,098 1,098
Year Acquired/ Constructed   Jan. 01, 2000
2010 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 350 350
Building and Improvements 1,981 1,981
Costs capitalized subsequent to acquisition or completion and valuation provision 124 124
Land 318 318
Building and improvements 2,137 2,137
Total 2,455 2,455
Accumulated depreciation 12/31/2012 625 625
Year Acquired/ Constructed   Jan. 01, 2000
2363 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 73 73
Building and Improvements 412 412
Costs capitalized subsequent to acquisition or completion and valuation provision 69 69
Land 47 47
Building and improvements 507 507
Total 554 554
Accumulated depreciation 12/31/2012 242 242
Year Acquired/ Constructed   Jan. 01, 2000
2447 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 70 70
Building and Improvements 395 395
Costs capitalized subsequent to acquisition or completion and valuation provision (115) (115)
Land 23 23
Building and improvements 327 327
Total 350 350
Accumulated depreciation 12/31/2012 159 159
Year Acquired/ Constructed   Jan. 01, 2000
2465-2475 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 91 91
Building and Improvements 514 514
Costs capitalized subsequent to acquisition or completion and valuation provision 32 32
Land 71 71
Building and improvements 566 566
Total 637 637
Accumulated depreciation 12/31/2012 192 192
Year Acquired/ Constructed   Jan. 01, 2000
2485-2505 Merritt Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 431 431
Building and Improvements 2,440 2,440
Costs capitalized subsequent to acquisition or completion and valuation provision 889 889
Land 426 426
Building and improvements 3,334 3,334
Total 3,760 3,760
Accumulated depreciation 12/31/2012 1,037 1,037
Year Acquired/ Constructed   Jan. 01, 2000
2081 Hutton Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 448 448
Building and Improvements 2,540 2,540
Costs capitalized subsequent to acquisition or completion and valuation provision (339) (339)
Land 273 273
Building and improvements 2,376 2,376
Total 2,649 2,649
Accumulated depreciation 12/31/2012 734 734
Year Acquired/ Constructed   Jan. 01, 2001
2110 Hutton Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 374 374
Building and Improvements 2,117 2,117
Costs capitalized subsequent to acquisition or completion and valuation provision 38 38
Land 255 255
Building and improvements 2,274 2,274
Total 2,529 2,529
Accumulated depreciation 12/31/2012 599 599
Year Acquired/ Constructed   Jan. 01, 2001
2025 McKenzie Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Encumbrances 1,516 1,516
Initial Cost of Land 437 437
Building and Improvements 2,478 2,478
Costs capitalized subsequent to acquisition or completion and valuation provision 259 259
Land 442 442
Building and improvements 2,732 2,732
Total 3,174 3,174
Accumulated depreciation 12/31/2012 887 887
Year Acquired/ Constructed   Jan. 01, 2001
2019 McKenzie Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Encumbrances 1,863 1,863
Initial Cost of Land 502 502
Building and Improvements 2,843 2,843
Costs capitalized subsequent to acquisition or completion and valuation provision 557 557
Land 507 507
Building and improvements 3,395 3,395
Total 3,902 3,902
Accumulated depreciation 12/31/2012 1,142 1,142
Year Acquired/ Constructed   Jan. 01, 2001
1420 Valwood Parkway - Bldg 1 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 460 460
Building and Improvements 2,608 2,608
Costs capitalized subsequent to acquisition or completion and valuation provision (1,367) (1,367)
Land 112 112
Building and improvements 1,589 1,589
Total 1,701 1,701
Accumulated depreciation 12/31/2012 892 892
Year Acquired/ Constructed   Jan. 01, 2001
1628 Valwood Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 497 497
Building and Improvements 2,815 2,815
Costs capitalized subsequent to acquisition or completion and valuation provision 310 310
Land 360 360
Building and improvements 3,261 3,261
Total 3,621 3,621
Accumulated depreciation 12/31/2012 1,361 1,361
Year Acquired/ Constructed   Jan. 01, 2001
1505 Luna Road B-II [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 167 167
Building and Improvements 948 948
Costs capitalized subsequent to acquisition or completion and valuation provision (471) (471)
Land 70 70
Building and improvements 574 574
Total 644 644
Accumulated depreciation 12/31/2012 262 262
Year Acquired/ Constructed   Jan. 01, 2001
1625 West Crosby Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 617 617
Building and Improvements 3,498 3,498
Costs capitalized subsequent to acquisition or completion and valuation provision (552) (552)
Land 381 381
Building and improvements 3,182 3,182
Total 3,563 3,563
Accumulated depreciation 12/31/2012 1,120 1,120
Year Acquired/ Constructed   Jan. 01, 2001
2029-2035 McKenzie Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Encumbrances 1,585 1,585
Initial Cost of Land 306 306
Building and Improvements 1,870 1,870
Costs capitalized subsequent to acquisition or completion and valuation provision 236 236
Land 306 306
Building and improvements 2,106 2,106
Total 2,412 2,412
Accumulated depreciation 12/31/2012 609 609
Year Acquired/ Constructed   Jan. 01, 2001
1840 Hutton Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 811 811
Building and Improvements 4,597 4,597
Costs capitalized subsequent to acquisition or completion and valuation provision (862) (862)
Land 552 552
Building and improvements 3,994 3,994
Total 4,546 4,546
Accumulated depreciation 12/31/2012 1,505 1,505
Year Acquired/ Constructed   Jan. 01, 2001
1420 Valwood Parkway-Bldg II [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 373 373
Building and Improvements 2,116 2,116
Costs capitalized subsequent to acquisition or completion and valuation provision 276 276
Land 366 366
Building and improvements 2,399 2,399
Total 2,765 2,765
Accumulated depreciation 12/31/2012 679 679
Year Acquired/ Constructed   Jan. 01, 2001
2015 McKenzie Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Encumbrances 2,588 2,588
Initial Cost of Land 510 510
Building and Improvements 2,891 2,891
Costs capitalized subsequent to acquisition or completion and valuation provision 428 428
Land 516 516
Building and improvements 3,313 3,313
Total 3,829 3,829
Accumulated depreciation 12/31/2012 992 992
Year Acquired/ Constructed   Jan. 01, 2001
2009 McKenzie Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Encumbrances 2,416 2,416
Initial Cost of Land 476 476
Building and Improvements 2,699 2,699
Costs capitalized subsequent to acquisition or completion and valuation provision 399 399
Land 481 481
Building and improvements 3,093 3,093
Total 3,574 3,574
Accumulated depreciation 12/31/2012 887 887
Year Acquired/ Constructed   Jan. 01, 2001
1505 Luna Road B1 I [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 521 521
Building and Improvements 2,953 2,953
Costs capitalized subsequent to acquisition or completion and valuation provision (1,885) (1,885)
Land 129 129
Building and improvements 1,460 1,460
Total 1,589 1,589
Accumulated depreciation 12/31/2012 801 801
Year Acquired/ Constructed   Jan. 01, 2001
2104 Hutton Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carrolton, TX
Initial Cost of Land 246 246
Building and Improvements 1,393 1,393
Costs capitalized subsequent to acquisition or completion and valuation provision (404) (404)
Land 132 132
Building and improvements 1,103 1,103
Total 1,235 1,235
Accumulated depreciation 12/31/2012 407 407
Year Acquired/ Constructed   Jan. 01, 2001
900-1100 Avenue S [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Encumbrances 2,654 2,654
Initial Cost of Land 623 623
Building and Improvements 3,528 3,528
Costs capitalized subsequent to acquisition or completion and valuation provision 1,406 1,406
Land 629 629
Building and improvements 4,928 4,928
Total 5,557 5,557
Accumulated depreciation 12/31/2012 1,474 1,474
Year Acquired/ Constructed   Jan. 01, 2002
Plano Crossing [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plano, TX
Encumbrances 9,367 9,367
Initial Cost of Land 1,961 1,961
Building and Improvements 11,112 11,112
Costs capitalized subsequent to acquisition or completion and valuation provision 781 781
Land 1,981 1,981
Building and improvements 11,873 11,873
Total 13,854 13,854
Accumulated depreciation 12/31/2012 3,168 3,168
Year Acquired/ Constructed   Jan. 01, 2002
7413A-C Dogwood Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 110 110
Building and Improvements 623 623
Costs capitalized subsequent to acquisition or completion and valuation provision 250 250
Land 111 111
Building and improvements 872 872
Total 983 983
Accumulated depreciation 12/31/2012 227 227
Year Acquired/ Constructed   Jan. 01, 2002
7450 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 36 36
Building and Improvements 204 204
Costs capitalized subsequent to acquisition or completion and valuation provision 103 103
Land 36 36
Building and improvements 307 307
Total 343 343
Accumulated depreciation 12/31/2012 90 90
Year Acquired/ Constructed   Jan. 01, 2002
7436 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 57 57
Building and Improvements 324 324
Costs capitalized subsequent to acquisition or completion and valuation provision 196 196
Land 58 58
Building and improvements 519 519
Total 577 577
Accumulated depreciation 12/31/2012 124 124
Year Acquired/ Constructed   Jan. 01, 2002
7426 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 76 76
Building and Improvements 429 429
Costs capitalized subsequent to acquisition or completion and valuation provision 249 249
Land 76 76
Building and improvements 678 678
Total 754 754
Accumulated depreciation 12/31/2012 189 189
Year Acquired/ Constructed   Jan. 01, 2002
7427-7429 Tower Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 75 75
Building and Improvements 427 427
Costs capitalized subsequent to acquisition or completion and valuation provision 134 134
Land 76 76
Building and improvements 560 560
Total 636 636
Accumulated depreciation 12/31/2012 162 162
Year Acquired/ Constructed   Jan. 01, 2002
2840-2842 Handley Ederville Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 112 112
Building and Improvements 635 635
Costs capitalized subsequent to acquisition or completion and valuation provision 54 54
Land 113 113
Building and improvements 688 688
Total 801 801
Accumulated depreciation 12/31/2012 175 175
Year Acquired/ Constructed   Jan. 01, 2002
7451-7477 Airport Freeway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Encumbrances 1,419 1,419
Initial Cost of Land 256 256
Building and Improvements 1,453 1,453
Costs capitalized subsequent to acquisition or completion and valuation provision 464 464
Land 259 259
Building and improvements 1,914 1,914
Total 2,173 2,173
Accumulated depreciation 12/31/2012 470 470
Year Acquired/ Constructed   Jan. 01, 2002
7450 Whitehall Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Initial Cost of Land 104 104
Building and Improvements 591 591
Costs capitalized subsequent to acquisition or completion and valuation provision 414 414
Land 105 105
Building and improvements 1,004 1,004
Total 1,109 1,109
Accumulated depreciation 12/31/2012 259 259
Year Acquired/ Constructed   Jan. 01, 2002
3000 Wesley Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Encumbrances 903 903
Initial Cost of Land 208 208
Building and Improvements 1,181 1,181
Costs capitalized subsequent to acquisition or completion and valuation provision 18 18
Land 211 211
Building and improvements 1,196 1,196
Total 1,407 1,407
Accumulated depreciation 12/31/2012 307 307
Year Acquired/ Constructed   Jan. 01, 2002
7451 Dogwood Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Hills, TX
Encumbrances 601 601
Initial Cost of Land 133 133
Building and Improvements 753 753
Costs capitalized subsequent to acquisition or completion and valuation provision 29 29
Land 134 134
Building and improvements 781 781
Total 915 915
Accumulated depreciation 12/31/2012 212 212
Year Acquired/ Constructed   Jan. 01, 2002
825-827 Avenue H [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Encumbrances 2,604 2,604
Initial Cost of Land 600 600
Building and Improvements 3,006 3,006
Costs capitalized subsequent to acquisition or completion and valuation provision 67 67
Land 604 604
Building and improvements 3,069 3,069
Total 3,673 3,673
Accumulated depreciation 12/31/2012 1,003 1,003
Year Acquired/ Constructed   Jan. 01, 2004
1013-31 Avenue M [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Initial Cost of Land 300 300
Building and Improvements 1,504 1,504
Costs capitalized subsequent to acquisition or completion and valuation provision 238 238
Land 302 302
Building and improvements 1,740 1,740
Total 2,042 2,042
Accumulated depreciation 12/31/2012 483 483
Year Acquired/ Constructed   Jan. 01, 2004
1172-84 113th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Encumbrances 2,028 2,028
Initial Cost of Land 700 700
Building and Improvements 3,509 3,509
Costs capitalized subsequent to acquisition or completion and valuation provision (51) (51)
Land 704 704
Building and improvements 3,454 3,454
Total 4,158 4,158
Accumulated depreciation 12/31/2012 946 946
Year Acquired/ Constructed   Jan. 01, 2004
1200-16 Avenue H [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Encumbrances 1,804 1,804
Initial Cost of Land 600 600
Building and Improvements 2,846 2,846
Costs capitalized subsequent to acquisition or completion and valuation provision 220 220
Land 604 604
Building and improvements 3,062 3,062
Total 3,666 3,666
Accumulated depreciation 12/31/2012 768 768
Year Acquired/ Constructed   Jan. 01, 2004
1322-66 W. North Carrier Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Encumbrances 4,403 4,403
Initial Cost of Land 1,000 1,000
Building and Improvements 5,012 5,012
Costs capitalized subsequent to acquisition or completion and valuation provision 106 106
Land 1,006 1,006
Building and improvements 5,112 5,112
Total 6,118 6,118
Accumulated depreciation 12/31/2012 1,411 1,411
Year Acquired/ Constructed   Jan. 01, 2004
2401-2407 Centennial Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Arlington, TX
Encumbrances 2,213 2,213
Initial Cost of Land 600 600
Building and Improvements 2,534 2,534
Costs capitalized subsequent to acquisition or completion and valuation provision 45 45
Land 604 604
Building and improvements 2,575 2,575
Total 3,179 3,179
Accumulated depreciation 12/31/2012 936 936
Year Acquired/ Constructed   Jan. 01, 2004
3111 West Commerce Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Dallas, TX
Encumbrances 3,653 3,653
Initial Cost of Land 1,000 1,000
Building and Improvements 3,364 3,364
Costs capitalized subsequent to acquisition or completion and valuation provision 282 282
Land 1,011 1,011
Building and improvements 3,635 3,635
Total 4,646 4,646
Accumulated depreciation 12/31/2012 1,010 1,010
Year Acquired/ Constructed   Jan. 01, 2004
13800 Senlac Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmers Ranch, TX
Encumbrances 3,534 3,534
Initial Cost of Land 823 823
Building and Improvements 4,042 4,042
Costs capitalized subsequent to acquisition or completion and valuation provision (18) (18)
Land 825 825
Building and improvements 4,022 4,022
Total 4,847 4,847
Accumulated depreciation 12/31/2012 1,019 1,019
Year Acquired/ Constructed   Jan. 01, 2005
801-831 S Great Southwest Pkwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Initial Cost of Land 2,581 2,581
Building and Improvements 16,556 16,556
Costs capitalized subsequent to acquisition or completion and valuation provision (218) (218)
Land 2,586 2,586
Building and improvements 16,333 16,333
Total 18,919 18,919
Accumulated depreciation 12/31/2012 6,074 6,074
Year Acquired/ Constructed   Jan. 01, 2005
801 Heinz Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Encumbrances 2,915 2,915
Initial Cost of Land 599 599
Building and Improvements 3,327 3,327
Costs capitalized subsequent to acquisition or completion and valuation provision 349 349
Land 601 601
Building and improvements 3,674 3,674
Total 4,275 4,275
Accumulated depreciation 12/31/2012 1,440 1,440
Year Acquired/ Constructed   Jan. 01, 2005
901-937 Heinz Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Prairie, TX
Encumbrances 2,186 2,186
Initial Cost of Land 493 493
Building and Improvements 2,758 2,758
Costs capitalized subsequent to acquisition or completion and valuation provision 31 31
Land 481 481
Building and improvements 2,801 2,801
Total 3,282 3,282
Accumulated depreciation 12/31/2012 841 841
Year Acquired/ Constructed   Jan. 01, 2005
3301 Century Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Irving, TX
Encumbrances 2,549 2,549
Initial Cost of Land 760 760
Building and Improvements 3,856 3,856
Costs capitalized subsequent to acquisition or completion and valuation provision 204 204
Land 771 771
Building and improvements 4,049 4,049
Total 4,820 4,820
Accumulated depreciation 12/31/2012 800 800
Year Acquired/ Constructed   Jan. 01, 2007
3901 W Miller Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Garland, TX
Initial Cost of Land 1,912 1,912
Costs capitalized subsequent to acquisition or completion and valuation provision 15,201 15,201
Land 1,947 1,947
Building and improvements 15,166 15,166
Total 17,113 17,113
Accumulated depreciation 12/31/2012 2,458 2,458
Year Acquired/ Constructed   Jan. 01, 2008
1731 Thorncroft [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 331 331
Building and Improvements 1,904 1,904
Costs capitalized subsequent to acquisition or completion and valuation provision 189 189
Land 331 331
Building and improvements 2,093 2,093
Total 2,424 2,424
Accumulated depreciation 12/31/2012 937 937
Year Acquired/ Constructed   Jan. 01, 1994
47461 Clipper [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth Township, MI
Initial Cost of Land 122 122
Building and Improvements 723 723
Costs capitalized subsequent to acquisition or completion and valuation provision 66 66
Land 122 122
Building and improvements 789 789
Total 911 911
Accumulated depreciation 12/31/2012 374 374
Year Acquired/ Constructed   Jan. 01, 1994
238 Executive Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 52 52
Building and Improvements 173 173
Costs capitalized subsequent to acquisition or completion and valuation provision 514 514
Land 100 100
Building and improvements 639 639
Total 739 739
Accumulated depreciation 12/31/2012 575 575
Year Acquired/ Constructed   Jan. 01, 1994
449 Executive Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 125 125
Building and Improvements 425 425
Costs capitalized subsequent to acquisition or completion and valuation provision 1,057 1,057
Land 218 218
Building and improvements 1,389 1,389
Total 1,607 1,607
Accumulated depreciation 12/31/2012 1,219 1,219
Year Acquired/ Constructed   Jan. 01, 1994
501 Executive Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 71 71
Building and Improvements 236 236
Costs capitalized subsequent to acquisition or completion and valuation provision 600 600
Land 129 129
Building and improvements 778 778
Total 907 907
Accumulated depreciation 12/31/2012 608 608
Year Acquired/ Constructed   Jan. 01, 1994
451 Robbins Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 96 96
Building and Improvements 448 448
Costs capitalized subsequent to acquisition or completion and valuation provision 864 864
Land 192 192
Building and improvements 1,216 1,216
Total 1,408 1,408
Accumulated depreciation 12/31/2012 1,083 1,083
Year Acquired/ Constructed   Jan. 01, 1994
1095 Crooks Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 331 331
Building and Improvements 1,017 1,017
Costs capitalized subsequent to acquisition or completion and valuation provision 2,624 2,624
Land 360 360
Building and improvements 3,612 3,612
Total 3,972 3,972
Accumulated depreciation 12/31/2012 2,288 2,288
Year Acquired/ Constructed   Jan. 01, 1994
1416 Meijer Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 94 94
Building and Improvements 394 394
Costs capitalized subsequent to acquisition or completion and valuation provision 399 399
Land 121 121
Building and improvements 766 766
Total 887 887
Accumulated depreciation 12/31/2012 689 689
Year Acquired/ Constructed   Jan. 01, 1994
1624 Meijer Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 236 236
Building and Improvements 1,406 1,406
Costs capitalized subsequent to acquisition or completion and valuation provision 967 967
Land 373 373
Building and improvements 2,236 2,236
Total 2,609 2,609
Accumulated depreciation 12/31/2012 1,866 1,866
Year Acquired/ Constructed   Jan. 01, 1994
1972 Meijer Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 315 315
Building and Improvements 1,301 1,301
Costs capitalized subsequent to acquisition or completion and valuation provision 735 735
Land 372 372
Building and improvements 1,979 1,979
Total 2,351 2,351
Accumulated depreciation 12/31/2012 1,579 1,579
Year Acquired/ Constructed   Jan. 01, 1994
1621 Northwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 85 85
Building and Improvements 351 351
Costs capitalized subsequent to acquisition or completion and valuation provision 1,014 1,014
Land 215 215
Building and improvements 1,235 1,235
Total 1,450 1,450
Accumulated depreciation 12/31/2012 1,165 1,165
Year Acquired/ Constructed   Jan. 01, 1994
1707 Northwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 95 95
Building and Improvements 262 262
Costs capitalized subsequent to acquisition or completion and valuation provision 1,327 1,327
Land 239 239
Building and improvements 1,445 1,445
Total 1,684 1,684
Accumulated depreciation 12/31/2012 1,241 1,241
Year Acquired/ Constructed   Jan. 01, 1994
1788 Northwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 50 50
Building and Improvements 196 196
Costs capitalized subsequent to acquisition or completion and valuation provision 483 483
Land 103 103
Building and improvements 626 626
Total 729 729
Accumulated depreciation 12/31/2012 562 562
Year Acquired/ Constructed   Jan. 01, 1994
1826 Northwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 55 55
Building and Improvements 208 208
Costs capitalized subsequent to acquisition or completion and valuation provision 472 472
Land 103 103
Building and improvements 632 632
Total 735 735
Accumulated depreciation 12/31/2012 552 552
Year Acquired/ Constructed   Jan. 01, 1994
1864 Northwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 57 57
Building and Improvements 190 190
Costs capitalized subsequent to acquisition or completion and valuation provision 489 489
Land 107 107
Building and improvements 629 629
Total 736 736
Accumulated depreciation 12/31/2012 570 570
Year Acquired/ Constructed   Jan. 01, 1994
2451 Elliott Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 78 78
Building and Improvements 319 319
Costs capitalized subsequent to acquisition or completion and valuation provision 739 739
Land 164 164
Building and improvements 972 972
Total 1,136 1,136
Accumulated depreciation 12/31/2012 906 906
Year Acquired/ Constructed   Jan. 01, 1994
2730 Research Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 903 903
Building and Improvements 4,215 4,215
Costs capitalized subsequent to acquisition or completion and valuation provision 1,402 1,402
Land 903 903
Building and improvements 5,617 5,617
Total 6,520 6,520
Accumulated depreciation 12/31/2012 4,292 4,292
Year Acquired/ Constructed   Jan. 01, 1994
2791 Research Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 557 557
Building and Improvements 2,731 2,731
Costs capitalized subsequent to acquisition or completion and valuation provision 752 752
Land 560 560
Building and improvements 3,480 3,480
Total 4,040 4,040
Accumulated depreciation 12/31/2012 2,214 2,214
Year Acquired/ Constructed   Jan. 01, 1994
2871 Research Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 324 324
Building and Improvements 1,487 1,487
Costs capitalized subsequent to acquisition or completion and valuation provision 574 574
Land 327 327
Building and improvements 2,058 2,058
Total 2,385 2,385
Accumulated depreciation 12/31/2012 1,452 1,452
Year Acquired/ Constructed   Jan. 01, 1994
3011 Research Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 457 457
Building and Improvements 2,104 2,104
Costs capitalized subsequent to acquisition or completion and valuation provision 712 712
Land 457 457
Building and improvements 2,816 2,816
Total 3,273 3,273
Accumulated depreciation 12/31/2012 2,086 2,086
Year Acquired/ Constructed   Jan. 01, 1994
2870 Technology Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 275 275
Building and Improvements 1,262 1,262
Costs capitalized subsequent to acquisition or completion and valuation provision 342 342
Land 279 279
Building and improvements 1,600 1,600
Total 1,879 1,879
Accumulated depreciation 12/31/2012 1,169 1,169
Year Acquired/ Constructed   Jan. 01, 1994
2900 Technology Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 214 214
Building and Improvements 977 977
Costs capitalized subsequent to acquisition or completion and valuation provision 564 564
Land 219 219
Building and improvements 1,536 1,536
Total 1,755 1,755
Accumulated depreciation 12/31/2012 913 913
Year Acquired/ Constructed   Jan. 01, 1994
2930 Technology Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 131 131
Building and Improvements 594 594
Costs capitalized subsequent to acquisition or completion and valuation provision 435 435
Land 138 138
Building and improvements 1,022 1,022
Total 1,160 1,160
Accumulated depreciation 12/31/2012 630 630
Year Acquired/ Constructed   Jan. 01, 1994
2950 Technology Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 178 178
Building and Improvements 819 819
Costs capitalized subsequent to acquisition or completion and valuation provision 381 381
Land 185 185
Building and improvements 1,193 1,193
Total 1,378 1,378
Accumulated depreciation 12/31/2012 873 873
Year Acquired/ Constructed   Jan. 01, 1994
23014 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 39 39
Building and Improvements 203 203
Costs capitalized subsequent to acquisition or completion and valuation provision 216 216
Land 56 56
Building and improvements 402 402
Total 458 458
Accumulated depreciation 12/31/2012 322 322
Year Acquired/ Constructed   Jan. 01, 1994
23028 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 98 98
Building and Improvements 507 507
Costs capitalized subsequent to acquisition or completion and valuation provision 285 285
Land 125 125
Building and improvements 765 765
Total 890 890
Accumulated depreciation 12/31/2012 644 644
Year Acquired/ Constructed   Jan. 01, 1994
23035 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 71 71
Building and Improvements 355 355
Costs capitalized subsequent to acquisition or completion and valuation provision 235 235
Land 93 93
Building and improvements 568 568
Total 661 661
Accumulated depreciation 12/31/2012 485 485
Year Acquired/ Constructed   Jan. 01, 1994
23042 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmintgon Hills, MI
Initial Cost of Land 67 67
Building and Improvements 277 277
Costs capitalized subsequent to acquisition or completion and valuation provision 273 273
Land 89 89
Building and improvements 528 528
Total 617 617
Accumulated depreciation 12/31/2012 462 462
Year Acquired/ Constructed   Jan. 01, 1994
23065 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 71 71
Building and Improvements 408 408
Costs capitalized subsequent to acquisition or completion and valuation provision 289 289
Land 93 93
Building and improvements 675 675
Total 768 768
Accumulated depreciation 12/31/2012 514 514
Year Acquired/ Constructed   Jan. 01, 1994
23079 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 68 68
Building and Improvements 301 301
Costs capitalized subsequent to acquisition or completion and valuation provision 290 290
Land 79 79
Building and improvements 580 580
Total 659 659
Accumulated depreciation 12/31/2012 461 461
Year Acquired/ Constructed   Jan. 01, 1994
23093 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 211 211
Building and Improvements 1,024 1,024
Costs capitalized subsequent to acquisition or completion and valuation provision 1,219 1,219
Land 295 295
Building and improvements 2,159 2,159
Total 2,454 2,454
Accumulated depreciation 12/31/2012 1,526 1,526
Year Acquired/ Constructed   Jan. 01, 1994
23135 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 146 146
Building and Improvements 701 701
Costs capitalized subsequent to acquisition or completion and valuation provision 392 392
Land 158 158
Building and improvements 1,081 1,081
Total 1,239 1,239
Accumulated depreciation 12/31/2012 800 800
Year Acquired/ Constructed   Jan. 01, 1994
23163 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 111 111
Building and Improvements 513 513
Costs capitalized subsequent to acquisition or completion and valuation provision 382 382
Land 138 138
Building and improvements 868 868
Total 1,006 1,006
Accumulated depreciation 12/31/2012 641 641
Year Acquired/ Constructed   Jan. 01, 1994
23177 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 175 175
Building and Improvements 1,007 1,007
Costs capitalized subsequent to acquisition or completion and valuation provision 608 608
Land 254 254
Building and improvements 1,536 1,536
Total 1,790 1,790
Accumulated depreciation 12/31/2012 1,177 1,177
Year Acquired/ Constructed   Jan. 01, 1994
23206 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 125 125
Building and Improvements 531 531
Costs capitalized subsequent to acquisition or completion and valuation provision 367 367
Land 137 137
Building and improvements 886 886
Total 1,023 1,023
Accumulated depreciation 12/31/2012 661 661
Year Acquired/ Constructed   Jan. 01, 1994
23370 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Farmington Hills, MI
Initial Cost of Land 59 59
Building and Improvements 233 233
Costs capitalized subsequent to acquisition or completion and valuation provision 175 175
Land 66 66
Building and improvements 401 401
Total 467 467
Accumulated depreciation 12/31/2012 373 373
Year Acquired/ Constructed   Jan. 01, 1994
1451 East Lincoln Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Madison Heights, MI
Initial Cost of Land 299 299
Building and Improvements 1,703 1,703
Costs capitalized subsequent to acquisition or completion and valuation provision (496) (496)
Land 148 148
Building and improvements 1,358 1,358
Total 1,506 1,506
Accumulated depreciation 12/31/2012 780 780
Year Acquired/ Constructed   Jan. 01, 1995
4400 Purks Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Auburn Hills, MI
Initial Cost of Land 602 602
Building and Improvements 3,410 3,410
Costs capitalized subsequent to acquisition or completion and valuation provision 3,300 3,300
Land 612 612
Building and improvements 6,700 6,700
Total 7,312 7,312
Accumulated depreciation 12/31/2012 2,677 2,677
Year Acquired/ Constructed   Jan. 01, 1995
32450 N Avis Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Madison Heights, MI
Initial Cost of Land 281 281
Building and Improvements 1,590 1,590
Costs capitalized subsequent to acquisition or completion and valuation provision 529 529
Land 286 286
Building and improvements 2,114 2,114
Total 2,400 2,400
Accumulated depreciation 12/31/2012 870 870
Year Acquired/ Constructed   Jan. 01, 1996
12707 Eckles Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth Township, MI
Initial Cost of Land 255 255
Building and Improvements 1,445 1,445
Costs capitalized subsequent to acquisition or completion and valuation provision 243 243
Land 267 267
Building and improvements 1,676 1,676
Total 1,943 1,943
Accumulated depreciation 12/31/2012 663 663
Year Acquired/ Constructed   Jan. 01, 1996
9300-9328 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 147 147
Building and Improvements 834 834
Costs capitalized subsequent to acquisition or completion and valuation provision 352 352
Land 159 159
Building and improvements 1,174 1,174
Total 1,333 1,333
Accumulated depreciation 12/31/2012 430 430
Year Acquired/ Constructed   Jan. 01, 1996
9330-9358 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 81 81
Building and Improvements 456 456
Costs capitalized subsequent to acquisition or completion and valuation provision 267 267
Land 89 89
Building and improvements 715 715
Total 804 804
Accumulated depreciation 12/31/2012 275 275
Year Acquired/ Constructed   Jan. 01, 1996
28420-28448 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 143 143
Building and Improvements 809 809
Costs capitalized subsequent to acquisition or completion and valuation provision 296 296
Land 154 154
Building and improvements 1,094 1,094
Total 1,248 1,248
Accumulated depreciation 12/31/2012 409 409
Year Acquired/ Constructed   Jan. 01, 1996
28450-28478 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 81 81
Building and Improvements 461 461
Costs capitalized subsequent to acquisition or completion and valuation provision 603 603
Land 90 90
Building and improvements 1,055 1,055
Total 1,145 1,145
Accumulated depreciation 12/31/2012 420 420
Year Acquired/ Constructed   Jan. 01, 1996
28421-28449 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 109 109
Building and Improvements 617 617
Costs capitalized subsequent to acquisition or completion and valuation provision 499 499
Land 119 119
Building and improvements 1,106 1,106
Total 1,225 1,225
Accumulated depreciation 12/31/2012 414 414
Year Acquired/ Constructed   Jan. 01, 1996
28451-28479 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 107 107
Building and Improvements 608 608
Costs capitalized subsequent to acquisition or completion and valuation provision 431 431
Land 117 117
Building and improvements 1,029 1,029
Total 1,146 1,146
Accumulated depreciation 12/31/2012 361 361
Year Acquired/ Constructed   Jan. 01, 1996
28825-28909 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 70 70
Building and Improvements 395 395
Costs capitalized subsequent to acquisition or completion and valuation provision 376 376
Land 78 78
Building and improvements 763 763
Total 841 841
Accumulated depreciation 12/31/2012 277 277
Year Acquired/ Constructed   Jan. 01, 1996
28933-29017 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 112 112
Building and Improvements 634 634
Costs capitalized subsequent to acquisition or completion and valuation provision 356 356
Land 122 122
Building and improvements 980 980
Total 1,102 1,102
Accumulated depreciation 12/31/2012 325 325
Year Acquired/ Constructed   Jan. 01, 1996
28824-28908 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 134 134
Building and Improvements 760 760
Costs capitalized subsequent to acquisition or completion and valuation provision 542 542
Land 145 145
Building and improvements 1,291 1,291
Total 1,436 1,436
Accumulated depreciation 12/31/2012 421 421
Year Acquired/ Constructed   Jan. 01, 1996
28932-29016 Highland Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 123 123
Building and Improvements 694 694
Costs capitalized subsequent to acquisition or completion and valuation provision 554 554
Land 133 133
Building and improvements 1,238 1,238
Total 1,371 1,371
Accumulated depreciation 12/31/2012 385 385
Year Acquired/ Constructed   Jan. 01, 1996
9710-9734 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 125 125
Building and Improvements 706 706
Costs capitalized subsequent to acquisition or completion and valuation provision 417 417
Land 135 135
Building and improvements 1,113 1,113
Total 1,248 1,248
Accumulated depreciation 12/31/2012 376 376
Year Acquired/ Constructed   Jan. 01, 1996
9740-9772 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 132 132
Building and Improvements 749 749
Costs capitalized subsequent to acquisition or completion and valuation provision 336 336
Land 143 143
Building and improvements 1,074 1,074
Total 1,217 1,217
Accumulated depreciation 12/31/2012 390 390
Year Acquired/ Constructed   Jan. 01, 1996
9840-9868 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 144 144
Building and Improvements 815 815
Costs capitalized subsequent to acquisition or completion and valuation provision 282 282
Land 155 155
Building and improvements 1,086 1,086
Total 1,241 1,241
Accumulated depreciation 12/31/2012 390 390
Year Acquired/ Constructed   Jan. 01, 1996
9800-9824 Harrison Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 117 117
Building and Improvements 664 664
Costs capitalized subsequent to acquisition or completion and valuation provision 348 348
Land 127 127
Building and improvements 1,002 1,002
Total 1,129 1,129
Accumulated depreciation 12/31/2012 324 324
Year Acquired/ Constructed   Jan. 01, 1996
29265-29285 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 140 140
Building and Improvements 794 794
Costs capitalized subsequent to acquisition or completion and valuation provision 255 255
Land 151 151
Building and improvements 1,038 1,038
Total 1,189 1,189
Accumulated depreciation 12/31/2012 397 397
Year Acquired/ Constructed   Jan. 01, 1996
29185-29225 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 140 140
Building and Improvements 792 792
Costs capitalized subsequent to acquisition or completion and valuation provision 507 507
Land 151 151
Building and improvements 1,288 1,288
Total 1,439 1,439
Accumulated depreciation 12/31/2012 459 459
Year Acquired/ Constructed   Jan. 01, 1996
29149-29165 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 216 216
Building and Improvements 1,225 1,225
Costs capitalized subsequent to acquisition or completion and valuation provision 294 294
Land 231 231
Building and improvements 1,504 1,504
Total 1,735 1,735
Accumulated depreciation 12/31/2012 584 584
Year Acquired/ Constructed   Jan. 01, 1996
29101-29115 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 130 130
Building and Improvements 738 738
Costs capitalized subsequent to acquisition or completion and valuation provision 275 275
Land 141 141
Building and improvements 1,002 1,002
Total 1,143 1,143
Accumulated depreciation 12/31/2012 406 406
Year Acquired/ Constructed   Jan. 01, 1996
29031-29045 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 124 124
Building and Improvements 704 704
Costs capitalized subsequent to acquisition or completion and valuation provision 118 118
Land 134 134
Building and improvements 812 812
Total 946 946
Accumulated depreciation 12/31/2012 323 323
Year Acquired/ Constructed   Jan. 01, 1996
29050-29062 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 127 127
Building and Improvements 718 718
Costs capitalized subsequent to acquisition or completion and valuation provision 221 221
Land 137 137
Building and improvements 929 929
Total 1,066 1,066
Accumulated depreciation 12/31/2012 356 356
Year Acquired/ Constructed   Jan. 01, 1996
29120-29134 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 161 161
Building and Improvements 912 912
Costs capitalized subsequent to acquisition or completion and valuation provision 297 297
Land 173 173
Building and improvements 1,197 1,197
Total 1,370 1,370
Accumulated depreciation 12/31/2012 454 454
Year Acquired/ Constructed   Jan. 01, 1996
29200-29214 Airport Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 170 170
Building and Improvements 963 963
Costs capitalized subsequent to acquisition or completion and valuation provision 376 376
Land 182 182
Building and improvements 1,327 1,327
Total 1,509 1,509
Accumulated depreciation 12/31/2012 502 502
Year Acquired/ Constructed   Jan. 01, 1996
9301-9339 Middlebelt Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Romulus, MI
Initial Cost of Land 124 124
Building and Improvements 703 703
Costs capitalized subsequent to acquisition or completion and valuation provision 478 478
Land 130 130
Building and improvements 1,175 1,175
Total 1,305 1,305
Accumulated depreciation 12/31/2012 433 433
Year Acquired/ Constructed   Jan. 01, 1996
32975 Capitol Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 135 135
Building and Improvements 748 748
Costs capitalized subsequent to acquisition or completion and valuation provision (170) (170)
Land 77 77
Building and improvements 636 636
Total 713 713
Accumulated depreciation 12/31/2012 291 291
Year Acquired/ Constructed   Jan. 01, 1998
32920 Capitol Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 76 76
Building and Improvements 422 422
Costs capitalized subsequent to acquisition or completion and valuation provision (91) (91)
Land 27 27
Building and improvements 380 380
Total 407 407
Accumulated depreciation 12/31/2012 179 179
Year Acquired/ Constructed   Jan. 01, 1998
11923 Brookfield Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 120 120
Building and Improvements 665 665
Costs capitalized subsequent to acquisition or completion and valuation provision (324) (324)
Land 32 32
Building and improvements 429 429
Total 461 461
Accumulated depreciation 12/31/2012 266 266
Year Acquired/ Constructed   Jan. 01, 1998
13405 Stark Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 46 46
Building and Improvements 254 254
Costs capitalized subsequent to acquisition or completion and valuation provision (3) (3)
Land 30 30
Building and improvements 267 267
Total 297 297
Accumulated depreciation 12/31/2012 115 115
Year Acquired/ Constructed   Jan. 01, 1998
1170 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 249 249
Building and Improvements 1,380 1,380
Costs capitalized subsequent to acquisition or completion and valuation provision (438) (438)
Land 134 134
Building and improvements 1,057 1,057
Total 1,191 1,191
Accumulated depreciation 12/31/2012 522 522
Year Acquired/ Constructed   Jan. 01, 1998
1200 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 268 268
Building and Improvements 1,483 1,483
Costs capitalized subsequent to acquisition or completion and valuation provision 263 263
Land 286 286
Building and improvements 1,728 1,728
Total 2,014 2,014
Accumulated depreciation 12/31/2012 612 612
Year Acquired/ Constructed   Jan. 01, 1998
450 Robbins Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 166 166
Building and Improvements 920 920
Costs capitalized subsequent to acquisition or completion and valuation provision 229 229
Land 178 178
Building and improvements 1,137 1,137
Total 1,315 1,315
Accumulated depreciation 12/31/2012 399 399
Year Acquired/ Constructed   Jan. 01, 1998
1230 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 271 271
Building and Improvements 1,498 1,498
Costs capitalized subsequent to acquisition or completion and valuation provision 167 167
Land 289 289
Building and improvements 1,647 1,647
Total 1,936 1,936
Accumulated depreciation 12/31/2012 599 599
Year Acquired/ Constructed   Jan. 01, 1998
12886 Westmore Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 190 190
Building and Improvements 1,050 1,050
Costs capitalized subsequent to acquisition or completion and valuation provision (351) (351)
Land 86 86
Building and improvements 803 803
Total 889 889
Accumulated depreciation 12/31/2012 406 406
Year Acquired/ Constructed   Jan. 01, 1998
33025 Industrial Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 80 80
Building and Improvements 442 442
Costs capitalized subsequent to acquisition or completion and valuation provision (324) (324)
Land 6 6
Building and improvements 192 192
Total 198 198
Accumulated depreciation 12/31/2012 165 165
Year Acquired/ Constructed   Jan. 01, 1998
47711 Clipper Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth Township, MI
Initial Cost of Land 539 539
Building and Improvements 2,983 2,983
Costs capitalized subsequent to acquisition or completion and valuation provision 279 279
Land 575 575
Building and improvements 3,226 3,226
Total 3,801 3,801
Accumulated depreciation 12/31/2012 1,173 1,173
Year Acquired/ Constructed   Jan. 01, 1998
32975 Industrial Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 160 160
Building and Improvements 887 887
Costs capitalized subsequent to acquisition or completion and valuation provision (192) (192)
Land 92 92
Building and improvements 763 763
Total 855 855
Accumulated depreciation 12/31/2012 347 347
Year Acquired/ Constructed   Jan. 01, 1998
32985 Industrial Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 137 137
Building and Improvements 761 761
Costs capitalized subsequent to acquisition or completion and valuation provision (329) (329)
Land 46 46
Building and improvements 523 523
Total 569 569
Accumulated depreciation 12/31/2012 289 289
Year Acquired/ Constructed   Jan. 01, 1998
32995 Industrial Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 160 160
Building and Improvements 887 887
Costs capitalized subsequent to acquisition or completion and valuation provision (381) (381)
Land 53 53
Building and improvements 613 613
Total 666 666
Accumulated depreciation 12/31/2012 363 363
Year Acquired/ Constructed   Jan. 01, 1998
12874 Westmore Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 137 137
Building and Improvements 761 761
Costs capitalized subsequent to acquisition or completion and valuation provision (275) (275)
Land 58 58
Building and improvements 565 565
Total 623 623
Accumulated depreciation 12/31/2012 299 299
Year Acquired/ Constructed   Jan. 01, 1998
1775 Bellingham [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 344 344
Building and Improvements 1,902 1,902
Costs capitalized subsequent to acquisition or completion and valuation provision 365 365
Land 367 367
Building and improvements 2,244 2,244
Total 2,611 2,611
Accumulated depreciation 12/31/2012 817 817
Year Acquired/ Constructed   Jan. 01, 1998
1785 East Maple [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 92 92
Building and Improvements 507 507
Costs capitalized subsequent to acquisition or completion and valuation provision 140 140
Land 98 98
Building and improvements 641 641
Total 739 739
Accumulated depreciation 12/31/2012 218 218
Year Acquired/ Constructed   Jan. 01, 1998
1807 East Maple [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 321 321
Building and Improvements 1,775 1,775
Costs capitalized subsequent to acquisition or completion and valuation provision (420) (420)
Land 191 191
Building and improvements 1,485 1,485
Total 1,676 1,676
Accumulated depreciation 12/31/2012 688 688
Year Acquired/ Constructed   Jan. 01, 1998
980 Chicago [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 206 206
Building and Improvements 1,141 1,141
Costs capitalized subsequent to acquisition or completion and valuation provision 238 238
Land 220 220
Building and improvements 1,365 1,365
Total 1,585 1,585
Accumulated depreciation 12/31/2012 485 485
Year Acquired/ Constructed   Jan. 01, 1998
1840 Enterprise Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 573 573
Building and Improvements 3,170 3,170
Costs capitalized subsequent to acquisition or completion and valuation provision (2,261) (2,261)
Land 49 49
Building and improvements 1,433 1,433
Total 1,482 1,482
Accumulated depreciation 12/31/2012 1,135 1,135
Year Acquired/ Constructed   Jan. 01, 1998
1885 Enterprise Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 209 209
Building and Improvements 1,158 1,158
Costs capitalized subsequent to acquisition or completion and valuation provision 200 200
Land 223 223
Building and improvements 1,344 1,344
Total 1,567 1,567
Accumulated depreciation 12/31/2012 463 463
Year Acquired/ Constructed   Jan. 01, 1998
1935-55 Enterprise Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rochester Hills, MI
Initial Cost of Land 1,285 1,285
Building and Improvements 7,144 7,144
Costs capitalized subsequent to acquisition or completion and valuation provision 1,339 1,339
Land 1,371 1,371
Building and improvements 8,397 8,397
Total 9,768 9,768
Accumulated depreciation 12/31/2012 2,976 2,976
Year Acquired/ Constructed   Jan. 01, 1998
5500 Enterprise Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Warren, MI
Initial Cost of Land 675 675
Building and Improvements 3,737 3,737
Costs capitalized subsequent to acquisition or completion and valuation provision 660 660
Land 721 721
Building and improvements 4,351 4,351
Total 5,072 5,072
Accumulated depreciation 12/31/2012 1,521 1,521
Year Acquired/ Constructed   Jan. 01, 1998
750 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 323 323
Building and Improvements 1,790 1,790
Costs capitalized subsequent to acquisition or completion and valuation provision 510 510
Land 345 345
Building and improvements 2,278 2,278
Total 2,623 2,623
Accumulated depreciation 12/31/2012 894 894
Year Acquired/ Constructed   Jan. 01, 1998
800 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 283 283
Building and Improvements 1,567 1,567
Costs capitalized subsequent to acquisition or completion and valuation provision 363 363
Land 302 302
Building and improvements 1,911 1,911
Total 2,213 2,213
Accumulated depreciation 12/31/2012 687 687
Year Acquired/ Constructed   Jan. 01, 1998
850 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 183 183
Building and Improvements 1,016 1,016
Costs capitalized subsequent to acquisition or completion and valuation provision 218 218
Land 196 196
Building and improvements 1,221 1,221
Total 1,417 1,417
Accumulated depreciation 12/31/2012 431 431
Year Acquired/ Constructed   Jan. 01, 1998
1100 East Mandoline Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Madison Heights, MI
Initial Cost of Land 888 888
Building and Improvements 4,915 4,915
Costs capitalized subsequent to acquisition or completion and valuation provision (1,406) (1,406)
Land 332 332
Building and improvements 4,065 4,065
Total 4,397 4,397
Accumulated depreciation 12/31/2012 1,940 1,940
Year Acquired/ Constructed   Jan. 01, 1998
1080, 1120, 1180 John Papalas Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   (e) Lincoln Park, MI
Initial Cost of Land 366 366
Building and Improvements 3,241 3,241
Costs capitalized subsequent to acquisition or completion and valuation provision 384 384
Land 297 297
Building and improvements 3,694 3,694
Total 3,991 3,991
Accumulated depreciation 12/31/2012 1,656 1,656
Year Acquired/ Constructed   Jan. 01, 1998
4872 S. Lapeer Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lake Orion Twsp, MI
Initial Cost of Land 1,342 1,342
Building and Improvements 5,441 5,441
Costs capitalized subsequent to acquisition or completion and valuation provision 1,307 1,307
Land 1,412 1,412
Building and improvements 6,678 6,678
Total 8,090 8,090
Accumulated depreciation 12/31/2012 2,189 2,189
Year Acquired/ Constructed   Jan. 01, 1999
22701 Trolley Industrial [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Taylor, MI
Initial Cost of Land 795 795
Costs capitalized subsequent to acquisition or completion and valuation provision 7,252 7,252
Land 849 849
Building and improvements 7,198 7,198
Total 8,047 8,047
Accumulated depreciation 12/31/2012 2,286 2,286
Year Acquired/ Constructed   Jan. 01, 1999
1400 Allen Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 209 209
Building and Improvements 1,154 1,154
Costs capitalized subsequent to acquisition or completion and valuation provision 149 149
Land 212 212
Building and improvements 1,300 1,300
Total 1,512 1,512
Accumulated depreciation 12/31/2012 385 385
Year Acquired/ Constructed   Jan. 01, 2000
1408 Allen Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 151 151
Building and Improvements 834 834
Costs capitalized subsequent to acquisition or completion and valuation provision 133 133
Land 153 153
Building and improvements 965 965
Total 1,118 1,118
Accumulated depreciation 12/31/2012 338 338
Year Acquired/ Constructed   Jan. 01, 2000
1305 Stephenson Hwy [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 345 345
Building and Improvements 1,907 1,907
Costs capitalized subsequent to acquisition or completion and valuation provision 255 255
Land 350 350
Building and improvements 2,157 2,157
Total 2,507 2,507
Accumulated depreciation 12/31/2012 657 657
Year Acquired/ Constructed   Jan. 01, 2000
32505 Industrial Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Madison Heights, MI
Initial Cost of Land 345 345
Building and Improvements 1,910 1,910
Costs capitalized subsequent to acquisition or completion and valuation provision 335 335
Land 351 351
Building and improvements 2,239 2,239
Total 2,590 2,590
Accumulated depreciation 12/31/2012 755 755
Year Acquired/ Constructed   Jan. 01, 2000
1799-1813 Northfield Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   (d) Rochester Hills, MI
Initial Cost of Land 481 481
Building and Improvements 2,665 2,665
Costs capitalized subsequent to acquisition or completion and valuation provision 345 345
Land 490 490
Building and improvements 3,001 3,001
Total 3,491 3,491
Accumulated depreciation 12/31/2012 924 924
Year Acquired/ Constructed   Jan. 01, 2000
28435 Automation Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Wixom, MI
Initial Cost of Land 621 621
Costs capitalized subsequent to acquisition or completion and valuation provision 3,662 3,662
Land 628 628
Building and improvements 3,655 3,655
Total 4,283 4,283
Accumulated depreciation 12/31/2012 736 736
Year Acquired/ Constructed   Jan. 01, 2004
32200 N Avis Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Madison Heights, MI
Initial Cost of Land 503 503
Building and Improvements 3,367 3,367
Costs capitalized subsequent to acquisition or completion and valuation provision (1,315) (1,315)
Land 195 195
Building and improvements 2,360 2,360
Total 2,555 2,555
Accumulated depreciation 12/31/2012 836 836
Year Acquired/ Constructed   Jan. 01, 2005
100 Kay Industrial Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rion Township, MI
Initial Cost of Land 677 677
Building and Improvements 2,018 2,018
Costs capitalized subsequent to acquisition or completion and valuation provision 277 277
Land 685 685
Building and improvements 2,287 2,287
Total 2,972 2,972
Accumulated depreciation 12/31/2012 792 792
Year Acquired/ Constructed   Jan. 01, 2005
32650 Capitol Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 282 282
Building and Improvements 1,128 1,128
Costs capitalized subsequent to acquisition or completion and valuation provision (499) (499)
Land 168 168
Building and improvements 743 743
Total 911 911
Accumulated depreciation 12/31/2012 159 159
Year Acquired/ Constructed   Jan. 01, 2005
11800 Sears Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Livonia, MI
Initial Cost of Land 693 693
Building and Improvements 1,507 1,507
Costs capitalized subsequent to acquisition or completion and valuation provision 1,195 1,195
Land 476 476
Building and improvements 2,919 2,919
Total 3,395 3,395
Accumulated depreciation 12/31/2012 1,176 1,176
Year Acquired/ Constructed   Jan. 01, 2005
1099 Chicago Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Troy, MI
Initial Cost of Land 1,277 1,277
Building and Improvements 1,332 1,332
Costs capitalized subsequent to acquisition or completion and valuation provision (1,769) (1,769)
Land 303 303
Building and improvements 537 537
Total 840 840
Accumulated depreciation 12/31/2012 201 201
Year Acquired/ Constructed   Jan. 01, 2005
42555 Merrill Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sterling Heights, MI
Initial Cost of Land 1,080 1,080
Building and Improvements 2,300 2,300
Costs capitalized subsequent to acquisition or completion and valuation provision 3,487 3,487
Land 1,090 1,090
Building and improvements 5,777 5,777
Total 6,867 6,867
Accumulated depreciation 12/31/2012 1,526 1,526
Year Acquired/ Constructed   Jan. 01, 2006
200 Northpointe Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Orion Township, MI
Initial Cost of Land 723 723
Building and Improvements 2,063 2,063
Costs capitalized subsequent to acquisition or completion and valuation provision 36 36
Land 734 734
Building and improvements 2,088 2,088
Total 2,822 2,822
Accumulated depreciation 12/31/2012 668 668
Year Acquired/ Constructed   Jan. 01, 2006
2102-2314 Edwards Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 348 348
Building and Improvements 1,973 1,973
Costs capitalized subsequent to acquisition or completion and valuation provision 1,697 1,697
Land 382 382
Building and improvements 3,636 3,636
Total 4,018 4,018
Accumulated depreciation 12/31/2012 1,100 1,100
Year Acquired/ Constructed   Jan. 01, 1997
3351 Rauch St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 272 272
Building and Improvements 1,541 1,541
Costs capitalized subsequent to acquisition or completion and valuation provision 539 539
Land 278 278
Building and improvements 2,074 2,074
Total 2,352 2,352
Accumulated depreciation 12/31/2012 698 698
Year Acquired/ Constructed   Jan. 01, 1997
3801-3851 Yale St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 2,095 2,095
Initial Cost of Land 413 413
Building and Improvements 2,343 2,343
Costs capitalized subsequent to acquisition or completion and valuation provision 433 433
Land 425 425
Building and improvements 2,764 2,764
Total 3,189 3,189
Accumulated depreciation 12/31/2012 1,040 1,040
Year Acquired/ Constructed   Jan. 01, 1997
3337-3347 Rauch Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 227 227
Building and Improvements 1,287 1,287
Costs capitalized subsequent to acquisition or completion and valuation provision 454 454
Land 233 233
Building and improvements 1,735 1,735
Total 1,968 1,968
Accumulated depreciation 12/31/2012 566 566
Year Acquired/ Constructed   Jan. 01, 1997
8505 N Loop East [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 1,705 1,705
Initial Cost of Land 439 439
Building and Improvements 2,489 2,489
Costs capitalized subsequent to acquisition or completion and valuation provision 642 642
Land 449 449
Building and improvements 3,121 3,121
Total 3,570 3,570
Accumulated depreciation 12/31/2012 1,097 1,097
Year Acquired/ Constructed   Jan. 01, 1997
4749-4799 Eastpark Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 2,496 2,496
Initial Cost of Land 594 594
Building and Improvements 3,368 3,368
Costs capitalized subsequent to acquisition or completion and valuation provision 1,264 1,264
Land 611 611
Building and improvements 4,615 4,615
Total 5,226 5,226
Accumulated depreciation 12/31/2012 1,574 1,574
Year Acquired/ Constructed   Jan. 01, 1997
4851 Homestead Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 3,284 3,284
Initial Cost of Land 491 491
Building and Improvements 2,782 2,782
Costs capitalized subsequent to acquisition or completion and valuation provision 1,583 1,583
Land 504 504
Building and improvements 4,352 4,352
Total 4,856 4,856
Accumulated depreciation 12/31/2012 1,409 1,409
Year Acquired/ Constructed   Jan. 01, 1997
3365-3385 Rauch Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 1,703 1,703
Initial Cost of Land 284 284
Building and Improvements 1,611 1,611
Costs capitalized subsequent to acquisition or completion and valuation provision 695 695
Land 290 290
Building and improvements 2,300 2,300
Total 2,590 2,590
Accumulated depreciation 12/31/2012 868 868
Year Acquired/ Constructed   Jan. 01, 1997
5050 Campbell Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 1,725 1,725
Initial Cost of Land 461 461
Building and Improvements 2,610 2,610
Costs capitalized subsequent to acquisition or completion and valuation provision 540 540
Land 470 470
Building and improvements 3,141 3,141
Total 3,611 3,611
Accumulated depreciation 12/31/2012 1,086 1,086
Year Acquired/ Constructed   Jan. 01, 1997
4300 Pine Timbers [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 2,783 2,783
Initial Cost of Land 489 489
Building and Improvements 2,769 2,769
Costs capitalized subsequent to acquisition or completion and valuation provision 741 741
Land 499 499
Building and improvements 3,500 3,500
Total 3,999 3,999
Accumulated depreciation 12/31/2012 1,252 1,252
Year Acquired/ Constructed   Jan. 01, 1997
2500-2530 Fairway Park Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 3,405 3,405
Initial Cost of Land 766 766
Building and Improvements 4,342 4,342
Costs capitalized subsequent to acquisition or completion and valuation provision 2,022 2,022
Land 792 792
Building and improvements 6,338 6,338
Total 7,130 7,130
Accumulated depreciation 12/31/2012 2,074 2,074
Year Acquired/ Constructed   Jan. 01, 1997
6550 Longpointe [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 1,380 1,380
Initial Cost of Land 362 362
Building and Improvements 2,050 2,050
Costs capitalized subsequent to acquisition or completion and valuation provision 478 478
Land 370 370
Building and improvements 2,520 2,520
Total 2,890 2,890
Accumulated depreciation 12/31/2012 937 937
Year Acquired/ Constructed   Jan. 01, 1997
1815 Turning Basin Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 1,879 1,879
Initial Cost of Land 487 487
Building and Improvements 2,761 2,761
Costs capitalized subsequent to acquisition or completion and valuation provision 687 687
Land 531 531
Building and improvements 3,404 3,404
Total 3,935 3,935
Accumulated depreciation 12/31/2012 1,244 1,244
Year Acquired/ Constructed   Jan. 01, 1997
1819 Turning Basin Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 231 231
Building and Improvements 1,308 1,308
Costs capitalized subsequent to acquisition or completion and valuation provision 545 545
Land 251 251
Building and improvements 1,833 1,833
Total 2,084 2,084
Accumulated depreciation 12/31/2012 662 662
Year Acquired/ Constructed   Jan. 01, 1997
1805 Turning Basin Dr [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 2,218 2,218
Initial Cost of Land 564 564
Building and Improvements 3,197 3,197
Costs capitalized subsequent to acquisition or completion and valuation provision 883 883
Land 616 616
Building and improvements 4,028 4,028
Total 4,644 4,644
Accumulated depreciation 12/31/2012 1,481 1,481
Year Acquired/ Constructed   Jan. 01, 1997
9835A Genard Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 1,505 1,505
Building and Improvements 8,333 8,333
Costs capitalized subsequent to acquisition or completion and valuation provision 3,334 3,334
Land 1,581 1,581
Building and improvements 11,591 11,591
Total 13,172 13,172
Accumulated depreciation 12/31/2012 3,562 3,562
Year Acquired/ Constructed   Jan. 01, 1999
9835B Genard Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 245 245
Building and Improvements 1,357 1,357
Costs capitalized subsequent to acquisition or completion and valuation provision 827 827
Land 256 256
Building and improvements 2,173 2,173
Total 2,429 2,429
Accumulated depreciation 12/31/2012 707 707
Year Acquired/ Constructed   Jan. 01, 1999
11505 State Highway 225 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   LaPorte City, TX
Encumbrances 4,631 4,631
Initial Cost of Land 940 940
Building and Improvements 4,675 4,675
Costs capitalized subsequent to acquisition or completion and valuation provision 606 606
Land 940 940
Building and improvements 5,281 5,281
Total 6,221 6,221
Accumulated depreciation 12/31/2012 1,470 1,470
Year Acquired/ Constructed   Jan. 01, 2005
1500 E. Main Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 201 201
Building and Improvements 1,328 1,328
Costs capitalized subsequent to acquisition or completion and valuation provision (26) (26)
Land 204 204
Building and improvements 1,299 1,299
Total 1,503 1,503
Accumulated depreciation 12/31/2012 671 671
Year Acquired/ Constructed   Jan. 01, 2005
700 Industrial Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sugar Land, TX
Encumbrances 3,311 3,311
Initial Cost of Land 608 608
Building and Improvements 3,679 3,679
Costs capitalized subsequent to acquisition or completion and valuation provision 317 317
Land 617 617
Building and improvements 3,987 3,987
Total 4,604 4,604
Accumulated depreciation 12/31/2012 908 908
Year Acquired/ Constructed   Jan. 01, 2007
7230-7238 Wynnwood [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 254 254
Building and Improvements 764 764
Costs capitalized subsequent to acquisition or completion and valuation provision 152 152
Land 259 259
Building and improvements 911 911
Total 1,170 1,170
Accumulated depreciation 12/31/2012 257 257
Year Acquired/ Constructed   Jan. 01, 2007
7240-7248 Wynnwood [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 271 271
Building and Improvements 726 726
Costs capitalized subsequent to acquisition or completion and valuation provision 18 18
Land 276 276
Building and improvements 739 739
Total 1,015 1,015
Accumulated depreciation 12/31/2012 253 253
Year Acquired/ Constructed   Jan. 01, 2007
7250-7260 Wynnwood [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 200 200
Building and Improvements 481 481
Costs capitalized subsequent to acquisition or completion and valuation provision 147 147
Land 203 203
Building and improvements 625 625
Total 828 828
Accumulated depreciation 12/31/2012 192 192
Year Acquired/ Constructed   Jan. 01, 2007
6400 Long Point [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 188 188
Building and Improvements 898 898
Costs capitalized subsequent to acquisition or completion and valuation provision (7) (7)
Land 188 188
Building and improvements 891 891
Total 1,079 1,079
Accumulated depreciation 12/31/2012 317 317
Year Acquired/ Constructed   Jan. 01, 2007
12705 S. Kirkwood, Ste 100-150 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Stafford, TX
Initial Cost of Land 154 154
Building and Improvements 626 626
Costs capitalized subsequent to acquisition or completion and valuation provision 80 80
Land 155 155
Building and improvements 705 705
Total 860 860
Accumulated depreciation 12/31/2012 172 172
Year Acquired/ Constructed   Jan. 01, 2007
12705 S. Kirkwood, Ste 200-220 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Stafford, TX
Initial Cost of Land 404 404
Building and Improvements 1,698 1,698
Costs capitalized subsequent to acquisition or completion and valuation provision 256 256
Land 393 393
Building and improvements 1,965 1,965
Total 2,358 2,358
Accumulated depreciation 12/31/2012 593 593
Year Acquired/ Constructed   Jan. 01, 2007
8850 Jameel [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 171 171
Building and Improvements 826 826
Costs capitalized subsequent to acquisition or completion and valuation provision 69 69
Land 171 171
Building and improvements 895 895
Total 1,066 1,066
Accumulated depreciation 12/31/2012 266 266
Year Acquired/ Constructed   Jan. 01, 2007
8800 Jameel [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 163 163
Building and Improvements 798 798
Costs capitalized subsequent to acquisition or completion and valuation provision (124) (124)
Land 124 124
Building and improvements 713 713
Total 837 837
Accumulated depreciation 12/31/2012 207 207
Year Acquired/ Constructed   Jan. 01, 2007
8700 Jameel [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 170 170
Building and Improvements 1,020 1,020
Costs capitalized subsequent to acquisition or completion and valuation provision (162) (162)
Land 120 120
Building and improvements 908 908
Total 1,028 1,028
Accumulated depreciation 12/31/2012 297 297
Year Acquired/ Constructed   Jan. 01, 2007
8600 Jameel [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 163 163
Building and Improvements 818 818
Costs capitalized subsequent to acquisition or completion and valuation provision 43 43
Land 163 163
Building and improvements 861 861
Total 1,024 1,024
Accumulated depreciation 12/31/2012 228 228
Year Acquired/ Constructed   Jan. 01, 2007
7967 Blankenship [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Initial Cost of Land 307 307
Building and Improvements 1,166 1,166
Costs capitalized subsequent to acquisition or completion and valuation provision 220 220
Land 307 307
Building and improvements 1,386 1,386
Total 1,693 1,693
Accumulated depreciation 12/31/2012 284 284
Year Acquired/ Constructed   Jan. 01, 2010
8800 City Park Look East [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Houston, TX
Encumbrances 23,925 23,925
Initial Cost of Land 3,717 3,717
Building and Improvements 19,237 19,237
Costs capitalized subsequent to acquisition or completion and valuation provision 1 1
Land 3,717 3,717
Building and improvements 19,237 19,237
Total 22,954 22,954
Accumulated depreciation 12/31/2012 1,608 1,608
Year Acquired/ Constructed   Jan. 01, 2011
2900 N Shadeland Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 2,057 2,057
Building and Improvements 13,565 13,565
Costs capitalized subsequent to acquisition or completion and valuation provision 3,453 3,453
Land 2,057 2,057
Building and improvements 17,018 17,018
Total 19,075 19,075
Accumulated depreciation 12/31/2012 7,013 7,013
Year Acquired/ Constructed   Jan. 01, 1996
1445 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 459 459
Building and Improvements 2,603 2,603
Costs capitalized subsequent to acquisition or completion and valuation provision 999 999
Land 476 476
Building and improvements 3,585 3,585
Total 4,061 4,061
Accumulated depreciation 12/31/2012 1,369 1,369
Year Acquired/ Constructed   Jan. 01, 1996
1440 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 3,710 3,710
Initial Cost of Land 665 665
Building and Improvements 3,770 3,770
Costs capitalized subsequent to acquisition or completion and valuation provision 897 897
Land 685 685
Building and improvements 4,647 4,647
Total 5,332 5,332
Accumulated depreciation 12/31/2012 2,095 2,095
Year Acquired/ Constructed   Jan. 01, 1996
1240 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 247 247
Building and Improvements 1,402 1,402
Costs capitalized subsequent to acquisition or completion and valuation provision 328 328
Land 258 258
Building and improvements 1,719 1,719
Total 1,977 1,977
Accumulated depreciation 12/31/2012 733 733
Year Acquired/ Constructed   Jan. 01, 1996
1345 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 586 586
Building and Improvements 3,321 3,321
Costs capitalized subsequent to acquisition or completion and valuation provision 696 696
Land 601 601
Building and improvements 4,002 4,002
Total 4,603 4,603
Accumulated depreciation 12/31/2012 1,671 1,671
Year Acquired/ Constructed   Jan. 01, 1996
1350 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 205 205
Building and Improvements 1,161 1,161
Costs capitalized subsequent to acquisition or completion and valuation provision 341 341
Land 212 212
Building and improvements 1,495 1,495
Total 1,707 1,707
Accumulated depreciation 12/31/2012 671 671
Year Acquired/ Constructed   Jan. 01, 1996
1341 Sadlier Circle South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 131 131
Building and Improvements 743 743
Costs capitalized subsequent to acquisition or completion and valuation provision 179 179
Land 136 136
Building and improvements 917 917
Total 1,053 1,053
Accumulated depreciation 12/31/2012 365 365
Year Acquired/ Constructed   Jan. 01, 1996
1322-1438 Sadlier Circle East [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 145 145
Building and Improvements 822 822
Costs capitalized subsequent to acquisition or completion and valuation provision 320 320
Land 152 152
Building and improvements 1,135 1,135
Total 1,287 1,287
Accumulated depreciation 12/31/2012 446 446
Year Acquired/ Constructed   Jan. 01, 1996
1327-1441 Sadlier Circle West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 218 218
Building and Improvements 1,234 1,234
Costs capitalized subsequent to acquisition or completion and valuation provision 498 498
Land 225 225
Building and improvements 1,725 1,725
Total 1,950 1,950
Accumulated depreciation 12/31/2012 616 616
Year Acquired/ Constructed   Jan. 01, 1996
1304 Sadlier Circle West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 71 71
Building and Improvements 405 405
Costs capitalized subsequent to acquisition or completion and valuation provision 189 189
Land 75 75
Building and improvements 590 590
Total 665 665
Accumulated depreciation 12/31/2012 237 237
Year Acquired/ Constructed   Jan. 01, 1996
1402-1430 Sadlier Circle West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 165 165
Building and Improvements 934 934
Costs capitalized subsequent to acquisition or completion and valuation provision 367 367
Land 171 171
Building and improvements 1,295 1,295
Total 1,466 1,466
Accumulated depreciation 12/31/2012 497 497
Year Acquired/ Constructed   Jan. 01, 1996
1504 Sadlier Circle South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 219 219
Building and Improvements 1,238 1,238
Costs capitalized subsequent to acquisition or completion and valuation provision (125) (125)
Land 115 115
Building and improvements 1,217 1,217
Total 1,332 1,332
Accumulated depreciation 12/31/2012 656 656
Year Acquired/ Constructed   Jan. 01, 1996
1365-1367 Sadlier Way Circle East [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 121 121
Building and Improvements 688 688
Costs capitalized subsequent to acquisition or completion and valuation provision 37 37
Land 91 91
Building and improvements 755 755
Total 846 846
Accumulated depreciation 12/31/2012 329 329
Year Acquired/ Constructed   Jan. 01, 1996
1352-1354 Sadlier Circle West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 178 178
Building and Improvements 1,008 1,008
Costs capitalized subsequent to acquisition or completion and valuation provision 187 187
Land 166 166
Building and improvements 1,207 1,207
Total 1,373 1,373
Accumulated depreciation 12/31/2012 477 477
Year Acquired/ Constructed   Jan. 01, 1996
1335 Sadlier Circle East [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 81 81
Building and Improvements 460 460
Costs capitalized subsequent to acquisition or completion and valuation provision 204 204
Land 85 85
Building and improvements 660 660
Total 745 745
Accumulated depreciation 12/31/2012 241 241
Year Acquired/ Constructed   Jan. 01, 1996
1425 Sadlier Circle West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 21 21
Building and Improvements 117 117
Costs capitalized subsequent to acquisition or completion and valuation provision 37 37
Land 23 23
Building and improvements 152 152
Total 175 175
Accumulated depreciation 12/31/2012 63 63
Year Acquired/ Constructed   Jan. 01, 1996
6951 East 30th St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 256 256
Building and Improvements 1,449 1,449
Costs capitalized subsequent to acquisition or completion and valuation provision 206 206
Land 265 265
Building and improvements 1,646 1,646
Total 1,911 1,911
Accumulated depreciation 12/31/2012 676 676
Year Acquired/ Constructed   Jan. 01, 1996
6701 East 30th St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 78 78
Building and Improvements 443 443
Costs capitalized subsequent to acquisition or completion and valuation provision 98 98
Land 82 82
Building and improvements 537 537
Total 619 619
Accumulated depreciation 12/31/2012 211 211
Year Acquired/ Constructed   Jan. 01, 1996
6737 East 30th St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 1,804 1,804
Initial Cost of Land 385 385
Building and Improvements 2,181 2,181
Costs capitalized subsequent to acquisition or completion and valuation provision 195 195
Land 398 398
Building and improvements 2,363 2,363
Total 2,761 2,761
Accumulated depreciation 12/31/2012 981 981
Year Acquired/ Constructed   Jan. 01, 1996
6555 East 30th St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 484 484
Building and Improvements 4,760 4,760
Costs capitalized subsequent to acquisition or completion and valuation provision 2,072 2,072
Land 484 484
Building and improvements 6,832 6,832
Total 7,316 7,316
Accumulated depreciation 12/31/2012 2,529 2,529
Year Acquired/ Constructed   Jan. 01, 1996
8402-8440 E 33rd St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 222 222
Building and Improvements 1,260 1,260
Costs capitalized subsequent to acquisition or completion and valuation provision 587 587
Land 230 230
Building and improvements 1,839 1,839
Total 2,069 2,069
Accumulated depreciation 12/31/2012 768 768
Year Acquired/ Constructed   Jan. 01, 1996
8520-8630 E 33rd St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 326 326
Building and Improvements 1,848 1,848
Costs capitalized subsequent to acquisition or completion and valuation provision 279 279
Land 281 281
Building and improvements 2,172 2,172
Total 2,453 2,453
Accumulated depreciation 12/31/2012 890 890
Year Acquired/ Constructed   Jan. 01, 1996
8710-8768 E 33rd St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 175 175
Building and Improvements 993 993
Costs capitalized subsequent to acquisition or completion and valuation provision 480 480
Land 180 180
Building and improvements 1,468 1,468
Total 1,648 1,648
Accumulated depreciation 12/31/2012 589 589
Year Acquired/ Constructed   Jan. 01, 1996
3316-3346 N. Pagosa Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 325 325
Building and Improvements 1,842 1,842
Costs capitalized subsequent to acquisition or completion and valuation provision 429 429
Land 332 332
Building and improvements 2,264 2,264
Total 2,596 2,596
Accumulated depreciation 12/31/2012 888 888
Year Acquired/ Constructed   Jan. 01, 1996
7901 West 21st St. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 5,118 5,118
Initial Cost of Land 1,048 1,048
Building and Improvements 6,027 6,027
Costs capitalized subsequent to acquisition or completion and valuation provision 279 279
Land 1,048 1,048
Building and improvements 6,306 6,306
Total 7,354 7,354
Accumulated depreciation 12/31/2012 2,451 2,451
Year Acquired/ Constructed   Jan. 01, 1997
1225 Brookville Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 60 60
Costs capitalized subsequent to acquisition or completion and valuation provision 416 416
Land 68 68
Building and improvements 408 408
Total 476 476
Accumulated depreciation 12/31/2012 154 154
Year Acquired/ Constructed   Jan. 01, 1997
6751 E 30th St [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 2,549 2,549
Initial Cost of Land 728 728
Building and Improvements 2,837 2,837
Costs capitalized subsequent to acquisition or completion and valuation provision 337 337
Land 741 741
Building and improvements 3,161 3,161
Total 3,902 3,902
Accumulated depreciation 12/31/2012 1,217 1,217
Year Acquired/ Constructed   Jan. 01, 1997
9200 East 146th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Noblesville, IN
Initial Cost of Land 181 181
Building and Improvements 1,221 1,221
Costs capitalized subsequent to acquisition or completion and valuation provision 1,059 1,059
Land 181 181
Building and improvements 2,280 2,280
Total 2,461 2,461
Accumulated depreciation 12/31/2012 811 811
Year Acquired/ Constructed   Jan. 01, 1998
6575 East 30th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 1,845 1,845
Initial Cost of Land 118 118
Costs capitalized subsequent to acquisition or completion and valuation provision 2,088 2,088
Land 128 128
Building and improvements 2,078 2,078
Total 2,206 2,206
Accumulated depreciation 12/31/2012 781 781
Year Acquired/ Constructed   Jan. 01, 1998
6585 East 30th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 2,757 2,757
Initial Cost of Land 196 196
Costs capitalized subsequent to acquisition or completion and valuation provision 3,101 3,101
Land 196 196
Building and improvements 3,101 3,101
Total 3,297 3,297
Accumulated depreciation 12/31/2012 1,066 1,066
Year Acquired/ Constructed   Jan. 01, 1998
9210 E. 146th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Noblesville, IN
Initial Cost of Land 66 66
Building and Improvements 684 684
Costs capitalized subsequent to acquisition or completion and valuation provision 167 167
Land 52 52
Building and improvements 865 865
Total 917 917
Accumulated depreciation 12/31/2012 335 335
Year Acquired/ Constructed   Jan. 01, 1998
5705-97 Park Plaza Ct. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Encumbrances 2,587 2,587
Initial Cost of Land 600 600
Building and Improvements 2,194 2,194
Costs capitalized subsequent to acquisition or completion and valuation provision 778 778
Land 609 609
Building and improvements 2,963 2,963
Total 3,572 3,572
Accumulated depreciation 12/31/2012 862 862
Year Acquired/ Constructed   Jan. 01, 2003
9319-9341 Castlegate Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Indianapolis, IN
Initial Cost of Land 530 530
Building and Improvements 1,235 1,235
Costs capitalized subsequent to acquisition or completion and valuation provision 777 777
Land 544 544
Building and improvements 1,998 1,998
Total 2,542 2,542
Accumulated depreciation 12/31/2012 595 595
Year Acquired/ Constructed   Jan. 01, 2003
1133 Northwest L Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richmond, IN
Encumbrances 462 462
Initial Cost of Land 201 201
Building and Improvements 1,358 1,358
Costs capitalized subsequent to acquisition or completion and valuation provision (48) (48)
Land 208 208
Building and improvements 1,303 1,303
Total 1,511 1,511
Accumulated depreciation 12/31/2012 584 584
Year Acquired/ Constructed   Jan. 01, 2006
14425 Bergen Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Noblesville, IN
Initial Cost of Land 647 647
Costs capitalized subsequent to acquisition or completion and valuation provision 3,861 3,861
Land 743 743
Building and improvements 3,765 3,765
Total 4,508 4,508
Accumulated depreciation 12/31/2012 868 868
Year Acquired/ Constructed   Jan. 01, 2007
4700 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 908 908
Building and Improvements 1,883 1,883
Costs capitalized subsequent to acquisition or completion and valuation provision 395 395
Land 912 912
Building and improvements 2,274 2,274
Total 3,186 3,186
Accumulated depreciation 12/31/2012 655 655
Year Acquired/ Constructed   Jan. 01, 2007
4710 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 830 830
Building and Improvements 2,722 2,722
Costs capitalized subsequent to acquisition or completion and valuation provision 386 386
Land 834 834
Building and improvements 3,104 3,104
Total 3,938 3,938
Accumulated depreciation 12/31/2012 739 739
Year Acquired/ Constructed   Jan. 01, 2007
4720 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 937 937
Building and Improvements 2,455 2,455
Costs capitalized subsequent to acquisition or completion and valuation provision 453 453
Land 942 942
Building and improvements 2,903 2,903
Total 3,845 3,845
Accumulated depreciation 12/31/2012 628 628
Year Acquired/ Constructed   Jan. 01, 2001
4740 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 1,107 1,107
Building and Improvements 3,111 3,111
Costs capitalized subsequent to acquisition or completion and valuation provision 361 361
Land 1,112 1,112
Building and improvements 3,467 3,467
Total 4,579 4,579
Accumulated depreciation 12/31/2012 742 742
Year Acquired/ Constructed   Jan. 01, 2007
4750 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 947 947
Building and Improvements 3,079 3,079
Costs capitalized subsequent to acquisition or completion and valuation provision 762 762
Land 951 951
Building and improvements 3,837 3,837
Total 4,788 4,788
Accumulated depreciation 12/31/2012 887 887
Year Acquired/ Constructed   Jan. 01, 2007
4800 NW 15th Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Ft. Lauderdale, FL
Initial Cost of Land 1,092 1,092
Building and Improvements 3,308 3,308
Costs capitalized subsequent to acquisition or completion and valuation provision 186 186
Land 1,097 1,097
Building and improvements 3,489 3,489
Total 4,586 4,586
Accumulated depreciation 12/31/2012 751 751
Year Acquired/ Constructed   Jan. 01, 2007
Medley Industrial Center [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Medley, FL
Initial Cost of Land 857 857
Building and Improvements 3,428 3,428
Costs capitalized subsequent to acquisition or completion and valuation provision 3,335 3,335
Land 864 864
Building and improvements 6,756 6,756
Total 7,620 7,620
Accumulated depreciation 12/31/2012 1,027 1,027
Year Acquired/ Constructed   Jan. 01, 2007
12601 &12605 NW 115th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Medley, FL
Initial Cost of Land 2,521 2,521
Costs capitalized subsequent to acquisition or completion and valuation provision 638 638
Land 828 828
Building and improvements 2,331 2,331
Total 3,159 3,159
Accumulated depreciation 12/31/2012 184 184
Year Acquired/ Constructed   Jan. 01, 2008
N25 W23255 Paul Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pewaukee, WI
Encumbrances 1,926 1,926
Initial Cost of Land 569 569
Building and Improvements 3,270 3,270
Costs capitalized subsequent to acquisition or completion and valuation provision (187) (187)
Land 450 450
Building and improvements 3,202 3,202
Total 3,652 3,652
Accumulated depreciation 12/31/2012 1,437 1,437
Year Acquired/ Constructed   Jan. 01, 1994
6523 N Sydney Place [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Glendale, WI
Initial Cost of Land 172 172
Building and Improvements 976 976
Costs capitalized subsequent to acquisition or completion and valuation provision (63) (63)
Land 80 80
Building and improvements 1,005 1,005
Total 1,085 1,085
Accumulated depreciation 12/31/2012 487 487
Year Acquired/ Constructed   Jan. 01, 1995
5355 South Westridge Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Encumbrances 5,581 5,581
Initial Cost of Land 1,630 1,630
Building and Improvements 7,058 7,058
Costs capitalized subsequent to acquisition or completion and valuation provision (108) (108)
Land 1,646 1,646
Building and improvements 6,934 6,934
Total 8,580 8,580
Accumulated depreciation 12/31/2012 1,319 1,319
Year Acquired/ Constructed   Jan. 01, 2004
320-334 W. Vogel Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Milwaukee, WI
Encumbrances 2,780 2,780
Initial Cost of Land 506 506
Building and Improvements 3,199 3,199
Costs capitalized subsequent to acquisition or completion and valuation provision (135) (135)
Land 508 508
Building and improvements 3,062 3,062
Total 3,570 3,570
Accumulated depreciation 12/31/2012 1,218 1,218
Year Acquired/ Constructed   Jan. 01, 2005
4950 South 6th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Milwaukee, WI
Encumbrances 1,518 1,518
Initial Cost of Land 299 299
Building and Improvements 1,565 1,565
Costs capitalized subsequent to acquisition or completion and valuation provision 250 250
Land 301 301
Building and improvements 1,813 1,813
Total 2,114 2,114
Accumulated depreciation 12/31/2012 735 735
Year Acquired/ Constructed   Jan. 01, 2005
17005 W. Ryerson Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Encumbrances 3,025 3,025
Initial Cost of Land 403 403
Building and Improvements 3,647 3,647
Costs capitalized subsequent to acquisition or completion and valuation provision 243 243
Land 405 405
Building and improvements 3,888 3,888
Total 4,293 4,293
Accumulated depreciation 12/31/2012 1,143 1,143
Year Acquired/ Constructed   Jan. 01, 2005
W140 N9059 Lilly Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Menomonee Falls, WI
Initial Cost of Land 343 343
Building and Improvements 1,153 1,153
Costs capitalized subsequent to acquisition or completion and valuation provision 232 232
Land 366 366
Building and improvements 1,362 1,362
Total 1,728 1,728
Accumulated depreciation 12/31/2012 491 491
Year Acquired/ Constructed   Jan. 01, 2005
200 W. Vogel Avenue-Bldg B [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Milwaukee, WI
Encumbrances 1,907 1,907
Initial Cost of Land 301 301
Building and Improvements 2,150 2,150
Land 302 302
Building and improvements 2,149 2,149
Total 2,451 2,451
Accumulated depreciation 12/31/2012 871 871
Year Acquired/ Constructed   Jan. 01, 2005
4921 S. 2nd Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Milwaukee, WI
Initial Cost of Land 101 101
Building and Improvements 713 713
Costs capitalized subsequent to acquisition or completion and valuation provision (219) (219)
Land 58 58
Building and improvements 537 537
Total 595 595
Accumulated depreciation 12/31/2012 242 242
Year Acquired/ Constructed   Jan. 01, 2005
1500 Peebles Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Richland Center, WI
Initial Cost of Land 1,577 1,577
Building and Improvements 1,018 1,018
Costs capitalized subsequent to acquisition or completion and valuation provision (278) (278)
Land 1,528 1,528
Building and improvements 789 789
Total 2,317 2,317
Accumulated depreciation 12/31/2012 622 622
Year Acquired/ Constructed   Jan. 01, 2005
16600 West Glendale Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Encumbrances 2,419 2,419
Initial Cost of Land 704 704
Building and Improvements 1,923 1,923
Costs capitalized subsequent to acquisition or completion and valuation provision 877 877
Land 715 715
Building and improvements 2,789 2,789
Total 3,504 3,504
Accumulated depreciation 12/31/2012 1,078 1,078
Year Acquired/ Constructed   Jan. 01, 2006
2905 S. 160th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Initial Cost of Land 261 261
Building and Improvements 672 672
Costs capitalized subsequent to acquisition or completion and valuation provision 347 347
Land 265 265
Building and improvements 1,015 1,015
Total 1,280 1,280
Accumulated depreciation 12/31/2012 432 432
Year Acquired/ Constructed   Jan. 01, 2007
2855 S.160th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Initial Cost of Land 221 221
Building and Improvements 628 628
Costs capitalized subsequent to acquisition or completion and valuation provision 207 207
Land 225 225
Building and improvements 831 831
Total 1,056 1,056
Accumulated depreciation 12/31/2012 277 277
Year Acquired/ Constructed   Jan. 01, 2007
2485 Commerce Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Berlin, WI
Encumbrances 1,538 1,538
Initial Cost of Land 483 483
Building and Improvements 1,516 1,516
Costs capitalized subsequent to acquisition or completion and valuation provision 275 275
Land 491 491
Building and improvements 1,783 1,783
Total 2,274 2,274
Accumulated depreciation 12/31/2012 646 646
Year Acquired/ Constructed   Jan. 01, 2007
14518 Whittaker Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Menomonee Falls, WI
Initial Cost of Land 437 437
Building and Improvements 1,082 1,082
Costs capitalized subsequent to acquisition or completion and valuation provision 425 425
Land 445 445
Building and improvements 1,499 1,499
Total 1,944 1,944
Accumulated depreciation 12/31/2012 434 434
Year Acquired/ Constructed   Jan. 01, 2007
N58W15380 Shawn Circle [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Menomonee Falls, WI
Initial Cost of Land 1,188 1,188
Costs capitalized subsequent to acquisition or completion and valuation provision 16,949 16,949
Land 1,204 1,204
Building and improvements 16,933 16,933
Total 18,137 18,137
Accumulated depreciation 12/31/2012 1,931 1,931
Year Acquired/ Constructed   Jan. 01, 2008
6201 West 111th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Bloomington, MN
Encumbrances 3,935 3,935
Initial Cost of Land 1,358 1,358
Building and Improvements 8,622 8,622
Costs capitalized subsequent to acquisition or completion and valuation provision 13,445 13,445
Land 1,519 1,519
Building and improvements 21,906 21,906
Total 23,425 23,425
Accumulated depreciation 12/31/2012 9,510 9,510
Year Acquired/ Constructed   Jan. 01, 1994
7251-7267 Washington Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Edina, MN
Initial Cost of Land 129 129
Building and Improvements 382 382
Costs capitalized subsequent to acquisition or completion and valuation provision 703 703
Land 182 182
Building and improvements 1,032 1,032
Total 1,214 1,214
Accumulated depreciation 12/31/2012 761 761
Year Acquired/ Constructed   Jan. 01, 1994
7301-7325 Washington Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Edina, MN
Initial Cost of Land 174 174
Building and Improvements 391 391
Costs capitalized subsequent to acquisition or completion and valuation provision 3 3
Land 193 193
Building and improvements 375 375
Total 568 568
Accumulated depreciation 12/31/2012 96 96
Year Acquired/ Constructed   Jan. 01, 1994
7101 Winnetka Avenue North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Brooklyn Park, MN
Encumbrances 5,833 5,833
Initial Cost of Land 2,195 2,195
Building and Improvements 6,084 6,084
Costs capitalized subsequent to acquisition or completion and valuation provision 3,935 3,935
Land 2,228 2,228
Building and improvements 9,986 9,986
Total 12,214 12,214
Accumulated depreciation 12/31/2012 6,576 6,576
Year Acquired/ Constructed   Jan. 01, 1994
9901 West 74th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Encumbrances 3,278 3,278
Initial Cost of Land 621 621
Building and Improvements 3,289 3,289
Costs capitalized subsequent to acquisition or completion and valuation provision 2,954 2,954
Land 639 639
Building and improvements 6,225 6,225
Total 6,864 6,864
Accumulated depreciation 12/31/2012 4,994 4,994
Year Acquired/ Constructed   Jan. 01, 1994
1030 Lone Oak Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eagan, MN
Encumbrances 2,540 2,540
Initial Cost of Land 456 456
Building and Improvements 2,703 2,703
Costs capitalized subsequent to acquisition or completion and valuation provision 598 598
Land 456 456
Building and improvements 3,301 3,301
Total 3,757 3,757
Accumulated depreciation 12/31/2012 1,432 1,432
Year Acquired/ Constructed   Jan. 01, 1994
1060 Lone Oak Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eagan, MN
Encumbrances 3,289 3,289
Initial Cost of Land 624 624
Building and Improvements 3,700 3,700
Costs capitalized subsequent to acquisition or completion and valuation provision 539 539
Land 624 624
Building and improvements 4,239 4,239
Total 4,863 4,863
Accumulated depreciation 12/31/2012 1,870 1,870
Year Acquired/ Constructed   Jan. 01, 1994
5400 Nathan Lane [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth, MN
Encumbrances 2,866 2,866
Initial Cost of Land 749 749
Building and Improvements 4,461 4,461
Costs capitalized subsequent to acquisition or completion and valuation provision 791 791
Land 757 757
Building and improvements 5,244 5,244
Total 6,001 6,001
Accumulated depreciation 12/31/2012 2,294 2,294
Year Acquired/ Constructed   Jan. 01, 1994
6655 Wedgewood Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Maple Grove, MN
Encumbrances 6,967 6,967
Initial Cost of Land 1,466 1,466
Building and Improvements 8,342 8,342
Costs capitalized subsequent to acquisition or completion and valuation provision 3,408 3,408
Land 1,466 1,466
Building and improvements 11,750 11,750
Total 13,216 13,216
Accumulated depreciation 12/31/2012 4,771 4,771
Year Acquired/ Constructed   Jan. 01, 1994
10120 W 76th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Initial Cost of Land 315 315
Building and Improvements 1,804 1,804
Costs capitalized subsequent to acquisition or completion and valuation provision 1,761 1,761
Land 315 315
Building and improvements 3,565 3,565
Total 3,880 3,880
Accumulated depreciation 12/31/2012 1,495 1,495
Year Acquired/ Constructed   Jan. 01, 1995
12155 Nicollet Ave. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Burnsville, MN
Initial Cost of Land 286 286
Costs capitalized subsequent to acquisition or completion and valuation provision 1,741 1,741
Land 288 288
Building and improvements 1,739 1,739
Total 2,027 2,027
Accumulated depreciation 12/31/2012 749 749
Year Acquired/ Constructed   Jan. 01, 1995
4100 Peavey Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Chaska, MN
Initial Cost of Land 277 277
Building and Improvements 2,261 2,261
Costs capitalized subsequent to acquisition or completion and valuation provision 704 704
Land 277 277
Building and improvements 2,965 2,965
Total 3,242 3,242
Accumulated depreciation 12/31/2012 1,174 1,174
Year Acquired/ Constructed   Jan. 01, 1996
5205 Highway 169 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth, MN
Initial Cost of Land 446 446
Building and Improvements 2,525 2,525
Costs capitalized subsequent to acquisition or completion and valuation provision 848 848
Land 578 578
Building and improvements 3,241 3,241
Total 3,819 3,819
Accumulated depreciation 12/31/2012 1,367 1,367
Year Acquired/ Constructed   Jan. 01, 1996
7100-7198 Shady Oak Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Encumbrances 4,848 4,848
Initial Cost of Land 715 715
Building and Improvements 4,054 4,054
Costs capitalized subsequent to acquisition or completion and valuation provision 2,401 2,401
Land 736 736
Building and improvements 6,434 6,434
Total 7,170 7,170
Accumulated depreciation 12/31/2012 2,299 2,299
Year Acquired/ Constructed   Jan. 01, 1996
7500-7546 Washington Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Initial Cost of Land 229 229
Building and Improvements 1,300 1,300
Costs capitalized subsequent to acquisition or completion and valuation provision 883 883
Land 235 235
Building and improvements 2,177 2,177
Total 2,412 2,412
Accumulated depreciation 12/31/2012 789 789
Year Acquired/ Constructed   Jan. 01, 1996
7550-7586 Washington Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Initial Cost of Land 153 153
Building and Improvements 867 867
Costs capitalized subsequent to acquisition or completion and valuation provision 295 295
Land 157 157
Building and improvements 1,158 1,158
Total 1,315 1,315
Accumulated depreciation 12/31/2012 453 453
Year Acquired/ Constructed   Jan. 01, 1996
5240-5300 Valley Industrial Blvd S [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Encumbrances 2,250 2,250
Initial Cost of Land 362 362
Building and Improvements 2,049 2,049
Costs capitalized subsequent to acquisition or completion and valuation provision 822 822
Land 371 371
Building and improvements 2,862 2,862
Total 3,233 3,233
Accumulated depreciation 12/31/2012 1,037 1,037
Year Acquired/ Constructed   Jan. 01, 1996
500-530 Kasota Avenue SE [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Minneapolis, MN
Initial Cost of Land 415 415
Building and Improvements 2,354 2,354
Costs capitalized subsequent to acquisition or completion and valuation provision 998 998
Land 434 434
Building and improvements 3,333 3,333
Total 3,767 3,767
Accumulated depreciation 12/31/2012 1,222 1,222
Year Acquired/ Constructed   Jan. 01, 1998
2530-2570 Kasota Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Paul, MN
Initial Cost of Land 407 407
Building and Improvements 2,308 2,308
Costs capitalized subsequent to acquisition or completion and valuation provision 825 825
Land 441 441
Building and improvements 3,099 3,099
Total 3,540 3,540
Accumulated depreciation 12/31/2012 1,082 1,082
Year Acquired/ Constructed   Jan. 01, 1998
5775 12th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Encumbrances 4,187 4,187
Initial Cost of Land 590 590
Costs capitalized subsequent to acquisition or completion and valuation provision 5,427 5,427
Land 590 590
Building and improvements 5,427 5,427
Total 6,017 6,017
Accumulated depreciation 12/31/2012 1,782 1,782
Year Acquired/ Constructed   Jan. 01, 1998
1157 Valley Park Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Initial Cost of Land 760 760
Costs capitalized subsequent to acquisition or completion and valuation provision 6,592 6,592
Land 888 888
Building and improvements 6,464 6,464
Total 7,352 7,352
Accumulated depreciation 12/31/2012 2,246 2,246
Year Acquired/ Constructed   Jan. 01, 1999
9600 West 76th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Encumbrances 2,260 2,260
Initial Cost of Land 1,000 1,000
Building and Improvements 2,450 2,450
Costs capitalized subsequent to acquisition or completion and valuation provision 155 155
Land 1,034 1,034
Building and improvements 2,571 2,571
Total 3,605 3,605
Accumulated depreciation 12/31/2012 733 733
Year Acquired/ Constructed   Jan. 01, 2004
9700 West 76th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Encumbrances 3,168 3,168
Initial Cost of Land 1,000 1,000
Building and Improvements 2,709 2,709
Costs capitalized subsequent to acquisition or completion and valuation provision 558 558
Land 1,038 1,038
Building and improvements 3,229 3,229
Total 4,267 4,267
Accumulated depreciation 12/31/2012 974 974
Year Acquired/ Constructed   Jan. 01, 2004
7600 69th Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Greenfield, MN
Initial Cost of Land 1,500 1,500
Building and Improvements 8,328 8,328
Costs capitalized subsequent to acquisition or completion and valuation provision 1,388 1,388
Land 1,510 1,510
Building and improvements 9,706 9,706
Total 11,216 11,216
Accumulated depreciation 12/31/2012 2,898 2,898
Year Acquired/ Constructed   Jan. 01, 2004
5017 Boone Avenue North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   New Hope, MN
Encumbrances 2,023 2,023
Initial Cost of Land 1,000 1,000
Building and Improvements 1,599 1,599
Costs capitalized subsequent to acquisition or completion and valuation provision (15) (15)
Land 1,009 1,009
Building and improvements 1,575 1,575
Total 2,584 2,584
Accumulated depreciation 12/31/2012 665 665
Year Acquired/ Constructed   Jan. 01, 2005
2300 West Highway 13 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Burnsville, MN
Initial Cost of Land 2,517 2,517
Building and Improvements 6,069 6,069
Costs capitalized subsequent to acquisition or completion and valuation provision (2,577) (2,577)
Land 1,296 1,296
Building and improvements 4,713 4,713
Total 6,009 6,009
Accumulated depreciation 12/31/2012 2,755 2,755
Year Acquired/ Constructed   Jan. 01, 2005
1087 Park Place [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Encumbrances 4,241 4,241
Initial Cost of Land 1,195 1,195
Building and Improvements 4,891 4,891
Costs capitalized subsequent to acquisition or completion and valuation provision (666) (666)
Land 1,198 1,198
Building and improvements 4,222 4,222
Total 5,420 5,420
Accumulated depreciation 12/31/2012 846 846
Year Acquired/ Constructed   Jan. 01, 2005
5391 12th Avenue SE [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Encumbrances 4,690 4,690
Initial Cost of Land 1,392 1,392
Building and Improvements 8,149 8,149
Costs capitalized subsequent to acquisition or completion and valuation provision (339) (339)
Land 1,395 1,395
Building and improvements 7,807 7,807
Total 9,202 9,202
Accumulated depreciation 12/31/2012 1,669 1,669
Year Acquired/ Constructed   Jan. 01, 2005
4701 Valley Industrial Blvd S [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Shakopee, MN
Encumbrances 5,738 5,738
Initial Cost of Land 1,296 1,296
Building and Improvements 7,157 7,157
Costs capitalized subsequent to acquisition or completion and valuation provision (261) (261)
Land 1,299 1,299
Building and improvements 6,893 6,893
Total 8,192 8,192
Accumulated depreciation 12/31/2012 1,984 1,984
Year Acquired/ Constructed   Jan. 01, 2005
316 Lake Hazeltine Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Chaska, MN
Initial Cost of Land 714 714
Building and Improvements 944 944
Costs capitalized subsequent to acquisition or completion and valuation provision (111) (111)
Land 729 729
Building and improvements 818 818
Total 1,547 1,547
Accumulated depreciation 12/31/2012 271 271
Year Acquired/ Constructed   Jan. 01, 2006
6455 City West Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Eden Prairie, MN
Initial Cost of Land 659 659
Building and Improvements 3,189 3,189
Costs capitalized subsequent to acquisition or completion and valuation provision (411) (411)
Land 665 665
Building and improvements 2,772 2,772
Total 3,437 3,437
Accumulated depreciation 12/31/2012 697 697
Year Acquired/ Constructed   Jan. 01, 2006
1225 Highway 169 North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Plymouth, MN
Initial Cost of Land 1,190 1,190
Building and Improvements 1,979 1,979
Costs capitalized subsequent to acquisition or completion and valuation provision 34 34
Land 1,207 1,207
Building and improvements 1,996 1,996
Total 3,203 3,203
Accumulated depreciation 12/31/2012 649 649
Year Acquired/ Constructed   Jan. 01, 2006
7035 Winnetka Avene North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Brooklyn Park, MN
Encumbrances 4,308 4,308
Initial Cost of Land 1,275 1,275
Costs capitalized subsequent to acquisition or completion and valuation provision 6,469 6,469
Land 1,343 1,343
Building and improvements 6,401 6,401
Total 7,744 7,744
Accumulated depreciation 12/31/2012 901 901
Year Acquired/ Constructed   Jan. 01, 2007
139 Eva Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Paul, MN
Initial Cost of Land 2,132 2,132
Building and Improvements 3,105 3,105
Costs capitalized subsequent to acquisition or completion and valuation provision 90 90
Land 2,175 2,175
Building and improvements 3,152 3,152
Total 5,327 5,327
Accumulated depreciation 12/31/2012 655 655
Year Acquired/ Constructed   Jan. 01, 2008
21900 Dodd Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Lakeville, MN
Encumbrances 9,554 9,554
Initial Cost of Land 2,289 2,289
Building and Improvements 7,952 7,952
Costs capitalized subsequent to acquisition or completion and valuation provision (1) (1)
Land 2,289 2,289
Building and improvements 7,952 7,952
Total 10,241 10,241
Accumulated depreciation 12/31/2012 982 982
Year Acquired/ Constructed   Jan. 01, 2010
1621 Heil Quaker Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Nashville, TN
Encumbrances 2,343 2,343
Initial Cost of Land 413 413
Building and Improvements 2,383 2,383
Costs capitalized subsequent to acquisition or completion and valuation provision 1,845 1,845
Land 430 430
Building and improvements 4,211 4,211
Total 4,641 4,641
Accumulated depreciation 12/31/2012 2,242 2,242
Year Acquired/ Constructed   Jan. 01, 1995
3099 Barry Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Portland, TN
Initial Cost of Land 418 418
Building and Improvements 2,368 2,368
Costs capitalized subsequent to acquisition or completion and valuation provision (687) (687)
Land 248 248
Building and improvements 1,851 1,851
Total 2,099 2,099
Accumulated depreciation 12/31/2012 945 945
Year Acquired/ Constructed   Jan. 01, 1996
1931 Air Lane Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Nashville, TN
Encumbrances 2,386 2,386
Initial Cost of Land 489 489
Building and Improvements 2,785 2,785
Costs capitalized subsequent to acquisition or completion and valuation provision 254 254
Land 493 493
Building and improvements 3,035 3,035
Total 3,528 3,528
Accumulated depreciation 12/31/2012 1,126 1,126
Year Acquired/ Constructed   Jan. 01, 1997
4640 Cummings Park [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Nashville, TN
Encumbrances 2,139 2,139
Initial Cost of Land 360 360
Building and Improvements 2,040 2,040
Costs capitalized subsequent to acquisition or completion and valuation provision 674 674
Land 365 365
Building and improvements 2,709 2,709
Total 3,074 3,074
Accumulated depreciation 12/31/2012 869 869
Year Acquired/ Constructed   Jan. 01, 1999
1740 River Hills Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Nashville, TN
Encumbrances 2,983 2,983
Initial Cost of Land 848 848
Building and Improvements 4,383 4,383
Costs capitalized subsequent to acquisition or completion and valuation provision 624 624
Land 888 888
Building and improvements 4,967 4,967
Total 5,855 5,855
Accumulated depreciation 12/31/2012 1,687 1,687
Year Acquired/ Constructed   Jan. 01, 2005
211 Ellery Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Nashville, TN
Encumbrances 3,044 3,044
Initial Cost of Land 606 606
Building and Improvements 3,192 3,192
Costs capitalized subsequent to acquisition or completion and valuation provision 433 433
Land 616 616
Building and improvements 3,615 3,615
Total 4,231 4,231
Accumulated depreciation 12/31/2012 1,018 1,018
Year Acquired/ Constructed   Jan. 01, 2007
130 Maddox Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Gallatin, TN
Encumbrances 17,012 17,012
Initial Cost of Land 1,778 1,778
Costs capitalized subsequent to acquisition or completion and valuation provision 24,267 24,267
Land 1,778 1,778
Building and improvements 24,267 24,267
Total 26,045 26,045
Accumulated depreciation 12/31/2012 2,745 2,745
Year Acquired/ Constructed   Jan. 01, 2008
14 World's Fair Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin, NJ
Initial Cost of Land 483 483
Building and Improvements 2,735 2,735
Costs capitalized subsequent to acquisition or completion and valuation provision 672 672
Land 503 503
Building and improvements 3,387 3,387
Total 3,890 3,890
Accumulated depreciation 12/31/2012 1,262 1,262
Year Acquired/ Constructed   Jan. 01, 1997
12 World's Fair Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin, NJ
Initial Cost of Land 572 572
Building and Improvements 3,240 3,240
Costs capitalized subsequent to acquisition or completion and valuation provision 1,002 1,002
Land 593 593
Building and improvements 4,221 4,221
Total 4,814 4,814
Accumulated depreciation 12/31/2012 1,530 1,530
Year Acquired/ Constructed   Jan. 01, 1997
22 World's Fair Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin, NJ
Initial Cost of Land 364 364
Building and Improvements 2,064 2,064
Costs capitalized subsequent to acquisition or completion and valuation provision 652 652
Land 375 375
Building and improvements 2,705 2,705
Total 3,080 3,080
Accumulated depreciation 12/31/2012 1,168 1,168
Year Acquired/ Constructed   Jan. 01, 1997
26 World's Fair Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin, NJ
Initial Cost of Land 361 361
Building and Improvements 2,048 2,048
Costs capitalized subsequent to acquisition or completion and valuation provision 561 561
Land 377 377
Building and improvements 2,593 2,593
Total 2,970 2,970
Accumulated depreciation 12/31/2012 953 953
Year Acquired/ Constructed   Jan. 01, 1997
24 World's Fair Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Franklin, NJ
Initial Cost of Land 347 347
Building and Improvements 1,968 1,968
Costs capitalized subsequent to acquisition or completion and valuation provision 316 316
Land 362 362
Building and improvements 2,269 2,269
Total 2,631 2,631
Accumulated depreciation 12/31/2012 873 873
Year Acquired/ Constructed   Jan. 01, 1997
20 World's Fair Drive Lot 13 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sumerset, NJ
Initial Cost of Land 9 9
Costs capitalized subsequent to acquisition or completion and valuation provision 2,555 2,555
Land 691 691
Building and improvements 1,873 1,873
Total 2,564 2,564
Accumulated depreciation 12/31/2012 548 548
Year Acquired/ Constructed   Jan. 01, 1999
45 Route 46 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 969 969
Building and Improvements 5,491 5,491
Costs capitalized subsequent to acquisition or completion and valuation provision 906 906
Land 978 978
Building and improvements 6,388 6,388
Total 7,366 7,366
Accumulated depreciation 12/31/2012 1,870 1,870
Year Acquired/ Constructed   Jan. 01, 2000
43 Route 46 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 474 474
Building and Improvements 2,686 2,686
Costs capitalized subsequent to acquisition or completion and valuation provision 563 563
Land 479 479
Building and improvements 3,244 3,244
Total 3,723 3,723
Accumulated depreciation 12/31/2012 996 996
Year Acquired/ Constructed   Jan. 01, 2000
39 Route 46 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 260 260
Building and Improvements 1,471 1,471
Costs capitalized subsequent to acquisition or completion and valuation provision 156 156
Land 262 262
Building and improvements 1,625 1,625
Total 1,887 1,887
Accumulated depreciation 12/31/2012 490 490
Year Acquired/ Constructed   Jan. 01, 2000
26 Chapin Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Encumbrances 4,807 4,807
Initial Cost of Land 956 956
Building and Improvements 5,415 5,415
Costs capitalized subsequent to acquisition or completion and valuation provision 787 787
Land 965 965
Building and improvements 6,193 6,193
Total 7,158 7,158
Accumulated depreciation 12/31/2012 1,936 1,936
Year Acquired/ Constructed   Jan. 01, 2000
30 Chapin Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Encumbrances 4,562 4,562
Initial Cost of Land 960 960
Building and Improvements 5,440 5,440
Costs capitalized subsequent to acquisition or completion and valuation provision 393 393
Land 969 969
Building and improvements 5,824 5,824
Total 6,793 6,793
Accumulated depreciation 12/31/2012 1,696 1,696
Year Acquired/ Constructed   Jan. 01, 2000
20 Hook Mountain Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 1,507 1,507
Building and Improvements 8,542 8,542
Costs capitalized subsequent to acquisition or completion and valuation provision 2,950 2,950
Land 1,534 1,534
Building and improvements 11,465 11,465
Total 12,999 12,999
Accumulated depreciation 12/31/2012 3,971 3,971
Year Acquired/ Constructed   Jan. 01, 2000
30 Hook Mountain Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 389 389
Building and Improvements 2,206 2,206
Costs capitalized subsequent to acquisition or completion and valuation provision 514 514
Land 396 396
Building and improvements 2,713 2,713
Total 3,109 3,109
Accumulated depreciation 12/31/2012 783 783
Year Acquired/ Constructed   Jan. 01, 2000
55 Route 46 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Initial Cost of Land 396 396
Building and Improvements 2,244 2,244
Costs capitalized subsequent to acquisition or completion and valuation provision (367) (367)
Land 314 314
Building and improvements 1,959 1,959
Total 2,273 2,273
Accumulated depreciation 12/31/2012 673 673
Year Acquired/ Constructed   Jan. 01, 2000
16 Chapin Rod [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Encumbrances 3,629 3,629
Initial Cost of Land 885 885
Building and Improvements 5,015 5,015
Costs capitalized subsequent to acquisition or completion and valuation provision 559 559
Land 901 901
Building and improvements 5,558 5,558
Total 6,459 6,459
Accumulated depreciation 12/31/2012 1,645 1,645
Year Acquired/ Constructed   Jan. 01, 2000
20 Chapin Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pine Brook, NJ
Encumbrances 4,538 4,538
Initial Cost of Land 1,134 1,134
Building and Improvements 6,426 6,426
Costs capitalized subsequent to acquisition or completion and valuation provision 517 517
Land 1,154 1,154
Building and improvements 6,923 6,923
Total 8,077 8,077
Accumulated depreciation 12/31/2012 2,055 2,055
Year Acquired/ Constructed   Jan. 01, 2000
2500 Main Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sayreville, NJ
Encumbrances 3,492 3,492
Initial Cost of Land 944 944
Costs capitalized subsequent to acquisition or completion and valuation provision 4,493 4,493
Land 944 944
Building and improvements 4,493 4,493
Total 5,437 5,437
Accumulated depreciation 12/31/2012 1,130 1,130
Year Acquired/ Constructed   Jan. 01, 2002
2400 Main Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Sayreville, NJ
Initial Cost of Land 996 996
Costs capitalized subsequent to acquisition or completion and valuation provision 5,534 5,534
Land 996 996
Building and improvements 5,534 5,534
Total 6,530 6,530
Accumulated depreciation 12/31/2012 1,156 1,156
Year Acquired/ Constructed   Jan. 01, 2003
309-319 Pierce Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Somerset, NJ
Encumbrances 3,492 3,492
Initial Cost of Land 1,300 1,300
Building and Improvements 4,628 4,628
Costs capitalized subsequent to acquisition or completion and valuation provision 1,020 1,020
Land 1,309 1,309
Building and improvements 5,639 5,639
Total 6,948 6,948
Accumulated depreciation 12/31/2012 1,518 1,518
Year Acquired/ Constructed   Jan. 01, 2004
230-240 Welsh Pool Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 154 154
Building and Improvements 851 851
Costs capitalized subsequent to acquisition or completion and valuation provision 367 367
Land 170 170
Building and improvements 1,202 1,202
Total 1,372 1,372
Accumulated depreciation 12/31/2012 388 388
Year Acquired/ Constructed   Jan. 01, 1998
264 Welsh Pool Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 147 147
Building and Improvements 811 811
Costs capitalized subsequent to acquisition or completion and valuation provision 306 306
Land 162 162
Building and improvements 1,102 1,102
Total 1,264 1,264
Accumulated depreciation 12/31/2012 475 475
Year Acquired/ Constructed   Jan. 01, 1998
254 Welsh Pool Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 75 75
Building and Improvements 418 418
Costs capitalized subsequent to acquisition or completion and valuation provision 214 214
Land 91 91
Building and improvements 617 617
Total 708 708
Accumulated depreciation 12/31/2012 230 230
Year Acquired/ Constructed   Jan. 01, 1998
243-251 Welsh Pool Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 144 144
Building and Improvements 796 796
Costs capitalized subsequent to acquisition or completion and valuation provision 445 445
Land 159 159
Building and improvements 1,226 1,226
Total 1,385 1,385
Accumulated depreciation 12/31/2012 462 462
Year Acquired/ Constructed   Jan. 01, 1998
151-161 Philips Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 191 191
Building and Improvements 1,059 1,059
Costs capitalized subsequent to acquisition or completion and valuation provision 288 288
Land 229 229
Building and improvements 1,309 1,309
Total 1,538 1,538
Accumulated depreciation 12/31/2012 472 472
Year Acquired/ Constructed   Jan. 01, 1998
216 Philips Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Exton, PA
Initial Cost of Land 199 199
Building and Improvements 1,100 1,100
Costs capitalized subsequent to acquisition or completion and valuation provision 499 499
Land 220 220
Building and improvements 1,578 1,578
Total 1,798 1,798
Accumulated depreciation 12/31/2012 546 546
Year Acquired/ Constructed   Jan. 01, 1998
14 McFadden Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Palmer, PA
Encumbrances 1,633 1,633
Initial Cost of Land 600 600
Building and Improvements 1,349 1,349
Costs capitalized subsequent to acquisition or completion and valuation provision 56 56
Land 625 625
Building and improvements 1,380 1,380
Total 2,005 2,005
Accumulated depreciation 12/31/2012 655 655
Year Acquired/ Constructed   Jan. 01, 2004
2801 Red Lion Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Philadelphia, PA
Initial Cost of Land 950 950
Building and Improvements 5,916 5,916
Costs capitalized subsequent to acquisition or completion and valuation provision 721 721
Land 964 964
Building and improvements 6,623 6,623
Total 7,587 7,587
Accumulated depreciation 12/31/2012 2,414 2,414
Year Acquired/ Constructed   Jan. 01, 2005
3240 S. 78th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Philadelphia, PA
Initial Cost of Land 515 515
Building and Improvements 1,245 1,245
Costs capitalized subsequent to acquisition or completion and valuation provision (256) (256)
Land 423 423
Building and improvements 1,081 1,081
Total 1,504 1,504
Accumulated depreciation 12/31/2012 430 430
Year Acquired/ Constructed   Jan. 01, 2005
200 Cascade Drive, Bldg. 1 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Allen Town, PA
Encumbrances 18,378 18,378
Initial Cost of Land 2,133 2,133
Building and Improvements 17,562 17,562
Costs capitalized subsequent to acquisition or completion and valuation provision 923 923
Land 2,769 2,769
Building and improvements 17,849 17,849
Total 20,618 20,618
Accumulated depreciation 12/31/2012 4,834 4,834
Year Acquired/ Constructed   Jan. 01, 2007
200 Cascade Drive, Bldg. 2 [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Allen Town, PA
Encumbrances 2,418 2,418
Initial Cost of Land 310 310
Building and Improvements 2,268 2,268
Costs capitalized subsequent to acquisition or completion and valuation provision 174 174
Land 316 316
Building and improvements 2,436 2,436
Total 2,752 2,752
Accumulated depreciation 12/31/2012 493 493
Year Acquired/ Constructed   Jan. 01, 2007
6300 Bristol Pike [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Levittown, PA
Initial Cost of Land 1,074 1,074
Building and Improvements 2,642 2,642
Costs capitalized subsequent to acquisition or completion and valuation provision (414) (414)
Land 964 964
Building and improvements 2,338 2,338
Total 3,302 3,302
Accumulated depreciation 12/31/2012 1,112 1,112
Year Acquired/ Constructed   Jan. 01, 2008
2455 Boulevard of Generals [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Norristown, PA
Encumbrances 3,543 3,543
Initial Cost of Land 1,200 1,200
Building and Improvements 4,800 4,800
Costs capitalized subsequent to acquisition or completion and valuation provision 1,088 1,088
Land 1,226 1,226
Building and improvements 5,862 5,862
Total 7,088 7,088
Accumulated depreciation 12/31/2012 1,530 1,530
Year Acquired/ Constructed   Jan. 01, 2008
1045 South Edward Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tempe, AZ
Initial Cost of Land 390 390
Building and Improvements 2,160 2,160
Land 396 396
Building and improvements 2,318 2,318
Total 2,714 2,714
Accumulated depreciation 12/31/2012 787 787
Year Acquired/ Constructed   Jan. 01, 1999
Costs capitalized subsequent to acquisition or completion and valuation provision 164 164
50 South 56th Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Chandler, AZ
Initial Cost of Land 1,206 1,206
Building and Improvements 3,218 3,218
Land 1,252 1,252
Building and improvements 4,418 4,418
Total 5,670 5,670
Accumulated depreciation 12/31/2012 787 787
Year Acquired/ Constructed   Jan. 01, 2004
Costs capitalized subsequent to acquisition or completion and valuation provision 1,246 1,246
4701 W. Jefferson [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Phoenix, AZ
Encumbrances 2,647 2,647
Initial Cost of Land 926 926
Building and Improvements 2,195 2,195
Land 929 929
Building and improvements 2,635 2,635
Total 3,564 3,564
Accumulated depreciation 12/31/2012 1,125 1,125
Year Acquired/ Constructed   Jan. 01, 2005
Costs capitalized subsequent to acquisition or completion and valuation provision 443 443
7102 W. Roosevelt [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Phoenix, AZ
Initial Cost of Land 1,613 1,613
Building and Improvements 6,451 6,451
Land 1,620 1,620
Building and improvements 7,335 7,335
Total 8,955 8,955
Accumulated depreciation 12/31/2012 2,223 2,223
Year Acquired/ Constructed   Jan. 01, 2006
Costs capitalized subsequent to acquisition or completion and valuation provision 891 891
4137 West Adams Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Phoenix, AZ
Initial Cost of Land 990 990
Building and Improvements 2,661 2,661
Land 1,038 1,038
Building and improvements 3,079 3,079
Total 4,117 4,117
Accumulated depreciation 12/31/2012 727 727
Year Acquired/ Constructed   Jan. 01, 2006
Costs capitalized subsequent to acquisition or completion and valuation provision 466 466
245 W. Lodge [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tempe, AZ
Initial Cost of Land 898 898
Building and Improvements 3,066 3,066
Land 362 362
Building and improvements 1,712 1,712
Total 2,074 2,074
Accumulated depreciation 12/31/2012 551 551
Year Acquired/ Constructed   Jan. 01, 2007
Costs capitalized subsequent to acquisition or completion and valuation provision (1,890) (1,890)
1590 E Riverview Dr. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Phoenix, AZ
Initial Cost of Land 1,293 1,293
Building and Improvements 5,950 5,950
Land 1,292 1,292
Building and improvements 6,352 6,352
Total 7,644 7,644
Accumulated depreciation 12/31/2012 947 947
Year Acquired/ Constructed   Jan. 01, 2008
Costs capitalized subsequent to acquisition or completion and valuation provision 401 401
14131 N. Rio Vista Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Peoria, AZ
Initial Cost of Land 2,563 2,563
Building and Improvements 9,388 9,388
Land 2,563 2,563
Building and improvements 11,106 11,106
Total 13,669 13,669
Accumulated depreciation 12/31/2012 2,352 2,352
Year Acquired/ Constructed   Jan. 01, 2008
Costs capitalized subsequent to acquisition or completion and valuation provision 1,718 1,718
8716 W. Ludlow Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Peoria, AZ
Initial Cost of Land 2,709 2,709
Building and Improvements 10,970 10,970
Land 2,709 2,709
Building and improvements 12,207 12,207
Total 14,916 14,916
Accumulated depreciation 12/31/2012 2,087 2,087
Year Acquired/ Constructed   Jan. 01, 2008
Costs capitalized subsequent to acquisition or completion and valuation provision 1,237 1,237
3815 W. Washington St. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Phoenix, AZ
Encumbrances 3,853 3,853
Initial Cost of Land 1,675 1,675
Building and Improvements 4,514 4,514
Land 1,719 1,719
Building and improvements 4,619 4,619
Total 6,338 6,338
Accumulated depreciation 12/31/2012 668 668
Year Acquired/ Constructed   Jan. 01, 2008
Costs capitalized subsequent to acquisition or completion and valuation provision 149 149
9180 W. Buckeye Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tolleson, AZ
Encumbrances 7,154 7,154
Initial Cost of Land 1,904 1,904
Building and Improvements 6,805 6,805
Land 1,923 1,923
Building and improvements 8,926 8,926
Total 10,849 10,849
Accumulated depreciation 12/31/2012 1,400 1,400
Year Acquired/ Constructed   Jan. 01, 2008
Costs capitalized subsequent to acquisition or completion and valuation provision 2,140 2,140
350 Ironwood Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Salt Lake City, UT
Initial Cost of Land 2,688 2,688
Building and Improvements 15,643 15,643
Costs capitalized subsequent to acquisition or completion and valuation provision 3,967 3,967
Land 2,688 2,688
Building and improvements 19,610 19,610
Total 22,298 22,298
Accumulated depreciation 12/31/2012 7,107 7,107
Year Acquired/ Constructed   Jan. 01, 1997
1270 West 2320 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 138 138
Building and Improvements 784 784
Costs capitalized subsequent to acquisition or completion and valuation provision 183 183
Land 143 143
Building and improvements 962 962
Total 1,105 1,105
Accumulated depreciation 12/31/2012 398 398
Year Acquired/ Constructed   Jan. 01, 1998
1275 West 2240 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 395 395
Building and Improvements 2,241 2,241
Costs capitalized subsequent to acquisition or completion and valuation provision 338 338
Land 408 408
Building and improvements 2,566 2,566
Total 2,974 2,974
Accumulated depreciation 12/31/2012 960 960
Year Acquired/ Constructed   Jan. 01, 1998
1288 West 2240 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 119 119
Building and Improvements 672 672
Costs capitalized subsequent to acquisition or completion and valuation provision 104 104
Land 123 123
Building and improvements 772 772
Total 895 895
Accumulated depreciation 12/31/2012 270 270
Year Acquired/ Constructed   Jan. 01, 1998
2235 South 1300 West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 198 198
Building and Improvements 1,120 1,120
Costs capitalized subsequent to acquisition or completion and valuation provision 339 339
Land 204 204
Building and improvements 1,453 1,453
Total 1,657 1,657
Accumulated depreciation 12/31/2012 478 478
Year Acquired/ Constructed   Jan. 01, 1998
1293 West 2200 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 158 158
Building and Improvements 896 896
Costs capitalized subsequent to acquisition or completion and valuation provision 158 158
Land 163 163
Building and improvements 1,049 1,049
Total 1,212 1,212
Accumulated depreciation 12/31/2012 366 366
Year Acquired/ Constructed   Jan. 01, 1998
1279 West 2200 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 198 198
Building and Improvements 1,120 1,120
Costs capitalized subsequent to acquisition or completion and valuation provision 349 349
Land 204 204
Building and improvements 1,463 1,463
Total 1,667 1,667
Accumulated depreciation 12/31/2012 558 558
Year Acquired/ Constructed   Jan. 01, 1998
1272 West 2240 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 336 336
Building and Improvements 1,905 1,905
Costs capitalized subsequent to acquisition or completion and valuation provision 399 399
Land 347 347
Building and improvements 2,293 2,293
Total 2,640 2,640
Accumulated depreciation 12/31/2012 814 814
Year Acquired/ Constructed   Jan. 01, 1998
1149 West 2240 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 217 217
Building and Improvements 1,232 1,232
Costs capitalized subsequent to acquisition or completion and valuation provision 158 158
Land 225 225
Building and improvements 1,382 1,382
Total 1,607 1,607
Accumulated depreciation 12/31/2012 501 501
Year Acquired/ Constructed   Jan. 01, 1998
1142 West 2320 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 217 217
Building and Improvements 1,232 1,232
Costs capitalized subsequent to acquisition or completion and valuation provision 101 101
Land 225 225
Building and improvements 1,325 1,325
Total 1,550 1,550
Accumulated depreciation 12/31/2012 482 482
Year Acquired/ Constructed   Jan. 01, 1998
1152 West 2240 South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Initial Cost of Land 1,652 1,652
Costs capitalized subsequent to acquisition or completion and valuation provision 2,577 2,577
Land 669 669
Building and improvements 3,560 3,560
Total 4,229 4,229
Accumulated depreciation 12/31/2012 1,231 1,231
Year Acquired/ Constructed   Jan. 01, 2000
2323 South 900 W [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Salt Lake City, UT
Initial Cost of Land 886 886
Building and Improvements 2,995 2,995
Costs capitalized subsequent to acquisition or completion and valuation provision 348 348
Land 898 898
Building and improvements 3,331 3,331
Total 4,229 4,229
Accumulated depreciation 12/31/2012 1,514 1,514
Year Acquired/ Constructed   Jan. 01, 2006
1815-1957 South 4650 West [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Salt Lake City, UT
Encumbrances 7,290 7,290
Initial Cost of Land 1,707 1,707
Building and Improvements 10,873 10,873
Costs capitalized subsequent to acquisition or completion and valuation provision 306 306
Land 1,713 1,713
Building and improvements 11,173 11,173
Total 12,886 12,886
Accumulated depreciation 12/31/2012 2,331 2,331
Year Acquired/ Constructed   Jan. 01, 2006
2100 Alexander Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Encumbrances 1,248 1,248
Initial Cost of Land 376 376
Building and Improvements 1,670 1,670
Costs capitalized subsequent to acquisition or completion and valuation provision 156 156
Land 376 376
Building and improvements 1,826 1,826
Total 2,202 2,202
Accumulated depreciation 12/31/2012 331 331
Year Acquired/ Constructed   Jan. 01, 2007
2064 Alexander Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   West Valley, UT
Encumbrances 2,156 2,156
Initial Cost of Land 864 864
Building and Improvements 2,771 2,771
Costs capitalized subsequent to acquisition or completion and valuation provision 191 191
Land 869 869
Building and improvements 2,957 2,957
Total 3,826 3,826
Accumulated depreciation 12/31/2012 746 746
Year Acquired/ Constructed   Jan. 01, 2007
1901 Raymond Ave SW [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Renton, WA
Encumbrances 1,606 1,606
Initial Cost of Land 4,458 4,458
Building and Improvements 2,659 2,659
Costs capitalized subsequent to acquisition or completion and valuation provision 705 705
Land 4,594 4,594
Building and improvements 3,228 3,228
Total 7,822 7,822
Accumulated depreciation 12/31/2012 647 647
Year Acquired/ Constructed   Jan. 01, 2008
19014 64th Avenue South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Kent, WA
Encumbrances 3,242 3,242
Initial Cost of Land 1,990 1,990
Building and Improvements 3,979 3,979
Costs capitalized subsequent to acquisition or completion and valuation provision 472 472
Land 2,042 2,042
Building and improvements 4,400 4,400
Total 6,442 6,442
Accumulated depreciation 12/31/2012 919 919
Year Acquired/ Constructed   Jan. 01, 2008
18640 68th Avenue South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Kent, WA
Encumbrances 642 642
Initial Cost of Land 1,218 1,218
Building and Improvements 1,950 1,950
Costs capitalized subsequent to acquisition or completion and valuation provision 379 379
Land 1,258 1,258
Building and improvements 2,289 2,289
Total 3,547 3,547
Accumulated depreciation 12/31/2012 516 516
Year Acquired/ Constructed   Jan. 01, 2008
3480 Marginal Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Seattle, WA
Initial Cost of Land 9,139 9,139
Building and Improvements 5,881 5,881
Costs capitalized subsequent to acquisition or completion and valuation provision 1,224 1,224
Land 9,340 9,340
Building and improvements 6,903 6,903
Total 16,243 16,243
Accumulated depreciation 12/31/2012 651 651
Year Acquired/ Constructed   Jan. 01, 2008
1944 Vista Bella Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Encumbrances 3,792 3,792
Initial Cost of Land 1,746 1,746
Building and Improvements 3,148 3,148
Costs capitalized subsequent to acquisition or completion and valuation provision 555 555
Land 1,822 1,822
Building and improvements 3,627 3,627
Total 5,449 5,449
Accumulated depreciation 12/31/2012 1,074 1,074
Year Acquired/ Constructed   Jan. 01, 2005
2000 Vista Bella Way [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Encumbrances 1,388 1,388
Initial Cost of Land 817 817
Building and Improvements 1,673 1,673
Costs capitalized subsequent to acquisition or completion and valuation provision 287 287
Land 853 853
Building and improvements 1,924 1,924
Total 2,777 2,777
Accumulated depreciation 12/31/2012 570 570
Year Acquired/ Constructed   Jan. 01, 2005
2835 East Ana Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Encumbrances 2,946 2,946
Initial Cost of Land 1,682 1,682
Building and Improvements 2,750 2,750
Costs capitalized subsequent to acquisition or completion and valuation provision (227) (227)
Land 1,772 1,772
Building and improvements 2,433 2,433
Total 4,205 4,205
Accumulated depreciation 12/31/2012 700 700
Year Acquired/ Constructed   Jan. 01, 2005
16275 Technology Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   San Diego, CA
Initial Cost of Land 2,848 2,848
Building and Improvements 8,641 8,641
Costs capitalized subsequent to acquisition or completion and valuation provision (139) (139)
Land 2,859 2,859
Building and improvements 8,491 8,491
Total 11,350 11,350
Accumulated depreciation 12/31/2012 1,885 1,885
Year Acquired/ Constructed   Jan. 01, 2005
8921- 8971 Fost Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hazelwood, MO
Initial Cost of Land 431 431
Building and Improvements 2,479 2,479
Costs capitalized subsequent to acquisition or completion and valuation provision 772 772
Land 431 431
Building and improvements 3,251 3,251
Total 3,682 3,682
Accumulated depreciation 12/31/2012 1,283 1,283
Year Acquired/ Constructed   Jan. 01, 1994
9043-9083 Frost Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hazelwood, MO
Initial Cost of Land 319 319
Building and Improvements 1,838 1,838
Costs capitalized subsequent to acquisition or completion and valuation provision 2,306 2,306
Land 319 319
Building and improvements 4,144 4,144
Total 4,463 4,463
Accumulated depreciation 12/31/2012 1,288 1,288
Year Acquired/ Constructed   Jan. 01, 1994
10431 Midwest Industrial Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Olivette, MO
Encumbrances 1,343 1,343
Initial Cost of Land 237 237
Building and Improvements 1,360 1,360
Costs capitalized subsequent to acquisition or completion and valuation provision 460 460
Land 237 237
Building and improvements 1,820 1,820
Total 2,057 2,057
Accumulated depreciation 12/31/2012 757 757
Year Acquired/ Constructed   Jan. 01, 1994
10751 Midwest Industrial Boulevard [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Olivette, MO
Initial Cost of Land 193 193
Building and Improvements 1,119 1,119
Costs capitalized subsequent to acquisition or completion and valuation provision 262 262
Land 194 194
Building and improvements 1,380 1,380
Total 1,574 1,574
Accumulated depreciation 12/31/2012 537 537
Year Acquired/ Constructed   Jan. 01, 1994
6951 N Hanley [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Hazelwood, MO
Initial Cost of Land 405 405
Building and Improvements 2,295 2,295
Costs capitalized subsequent to acquisition or completion and valuation provision 2,353 2,353
Land 419 419
Building and improvements 4,634 4,634
Total 5,053 5,053
Accumulated depreciation 12/31/2012 1,530 1,530
Year Acquired/ Constructed   Jan. 01, 1996
1067-1083 Warson-Bldg A [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Louis, MO
Encumbrances 1,681 1,681
Initial Cost of Land 246 246
Building and Improvements 1,359 1,359
Costs capitalized subsequent to acquisition or completion and valuation provision 812 812
Land 251 251
Building and improvements 2,166 2,166
Total 2,417 2,417
Accumulated depreciation 12/31/2012 520 520
Year Acquired/ Constructed   Jan. 01, 2002
1093-1107 Warson-Bldg B [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Louis, MO
Encumbrances 2,835 2,835
Initial Cost of Land 380 380
Building and Improvements 2,103 2,103
Costs capitalized subsequent to acquisition or completion and valuation provision 1,592 1,592
Land 388 388
Building and improvements 3,687 3,687
Total 4,075 4,075
Accumulated depreciation 12/31/2012 830 830
Year Acquired/ Constructed   Jan. 01, 2002
1113-1129 Warson-Bldg C [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Louis, MO
Encumbrances 2,360 2,360
Initial Cost of Land 303 303
Building and Improvements 1,680 1,680
Costs capitalized subsequent to acquisition or completion and valuation provision 1,409 1,409
Land 310 310
Building and improvements 3,082 3,082
Total 3,392 3,392
Accumulated depreciation 12/31/2012 860 860
Year Acquired/ Constructed   Jan. 01, 2002
1131-1151 Warson-Bldg D [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Louis, MO
Encumbrances 2,181 2,181
Initial Cost of Land 353 353
Building and Improvements 1,952 1,952
Costs capitalized subsequent to acquisition or completion and valuation provision 829 829
Land 360 360
Building and improvements 2,774 2,774
Total 3,134 3,134
Accumulated depreciation 12/31/2012 870 870
Year Acquired/ Constructed   Jan. 01, 2002
6821-6857 Hazelwood Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Berkeley, MO
Encumbrances 4,753 4,753
Initial Cost of Land 985 985
Building and Improvements 6,205 6,205
Costs capitalized subsequent to acquisition or completion and valuation provision 614 614
Land 985 985
Building and improvements 6,819 6,819
Total 7,804 7,804
Accumulated depreciation 12/31/2012 1,875 1,875
Year Acquired/ Constructed   Jan. 01, 2003
13701 Rider Trail North [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Earth City, MO
Initial Cost of Land 800 800
Building and Improvements 2,099 2,099
Costs capitalized subsequent to acquisition or completion and valuation provision 641 641
Land 804 804
Building and improvements 2,736 2,736
Total 3,540 3,540
Accumulated depreciation 12/31/2012 755 755
Year Acquired/ Constructed   Jan. 01, 2003
1908-2000 Innerbelt [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Overland, MO
Encumbrances 7,736 7,736
Initial Cost of Land 1,590 1,590
Building and Improvements 9,026 9,026
Costs capitalized subsequent to acquisition or completion and valuation provision 1,001 1,001
Land 1,591 1,591
Building and improvements 10,026 10,026
Total 11,617 11,617
Accumulated depreciation 12/31/2012 3,200 3,200
Year Acquired/ Constructed   Jan. 01, 2004
9060 Latty Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Berkeley, MO
Initial Cost of Land 687 687
Building and Improvements 1,947 1,947
Costs capitalized subsequent to acquisition or completion and valuation provision (293) (293)
Land 694 694
Building and improvements 1,647 1,647
Total 2,341 2,341
Accumulated depreciation 12/31/2012 1,176 1,176
Year Acquired/ Constructed   Jan. 01, 2006
21-25 Gateway Commerce Center [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Edwardsville, IL
Encumbrances 22,368 22,368
Initial Cost of Land 1,874 1,874
Building and Improvements 31,958 31,958
Costs capitalized subsequent to acquisition or completion and valuation provision 206 206
Land 1,928 1,928
Building and improvements 32,110 32,110
Total 34,038 34,038
Accumulated depreciation 12/31/2012 5,756 5,756
Year Acquired/ Constructed   Jan. 01, 2006
6647 Romiss Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   St. Louis, MO
Initial Cost of Land 230 230
Building and Improvements 681 681
Costs capitalized subsequent to acquisition or completion and valuation provision 72 72
Land 241 241
Building and improvements 742 742
Total 983 983
Accumulated depreciation 12/31/2012 242 242
Year Acquired/ Constructed   Jan. 01, 2008
5313 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 204 204
Building and Improvements 1,159 1,159
Costs capitalized subsequent to acquisition or completion and valuation provision 227 227
Land 257 257
Building and improvements 1,333 1,333
Total 1,590 1,590
Accumulated depreciation 12/31/2012 485 485
Year Acquired/ Constructed   Jan. 01, 1997
5525 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 192 192
Building and Improvements 1,086 1,086
Costs capitalized subsequent to acquisition or completion and valuation provision 424 424
Land 200 200
Building and improvements 1,502 1,502
Total 1,702 1,702
Accumulated depreciation 12/31/2012 707 707
Year Acquired/ Constructed   Jan. 01, 1997
5709 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 192 192
Building and Improvements 1,086 1,086
Costs capitalized subsequent to acquisition or completion and valuation provision 158 158
Land 200 200
Building and improvements 1,236 1,236
Total 1,436 1,436
Accumulated depreciation 12/31/2012 463 463
Year Acquired/ Constructed   Jan. 01, 1997
5711 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 243 243
Building and Improvements 1,376 1,376
Costs capitalized subsequent to acquisition or completion and valuation provision 140 140
Land 255 255
Building and improvements 1,504 1,504
Total 1,759 1,759
Accumulated depreciation 12/31/2012 560 560
Year Acquired/ Constructed   Jan. 01, 1997
5453 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 71 71
Building and Improvements 402 402
Costs capitalized subsequent to acquisition or completion and valuation provision 150 150
Land 82 82
Building and improvements 541 541
Total 623 623
Accumulated depreciation 12/31/2012 196 196
Year Acquired/ Constructed   Jan. 01, 1997
5455 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 307 307
Building and Improvements 1,742 1,742
Costs capitalized subsequent to acquisition or completion and valuation provision 738 738
Land 326 326
Building and improvements 2,461 2,461
Total 2,787 2,787
Accumulated depreciation 12/31/2012 857 857
Year Acquired/ Constructed   Jan. 01, 1997
5553 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 307 307
Building and Improvements 1,742 1,742
Costs capitalized subsequent to acquisition or completion and valuation provision 472 472
Land 326 326
Building and improvements 2,195 2,195
Total 2,521 2,521
Accumulated depreciation 12/31/2012 853 853
Year Acquired/ Constructed   Jan. 01, 1997
5501 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 215 215
Building and Improvements 871 871
Costs capitalized subsequent to acquisition or completion and valuation provision 312 312
Land 242 242
Building and improvements 1,156 1,156
Total 1,398 1,398
Accumulated depreciation 12/31/2012 435 435
Year Acquired/ Constructed   Jan. 01, 1997
5503 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 98 98
Building and Improvements 402 402
Costs capitalized subsequent to acquisition or completion and valuation provision 289 289
Land 110 110
Building and improvements 679 679
Total 789 789
Accumulated depreciation 12/31/2012 271 271
Year Acquired/ Constructed   Jan. 01, 1997
5555 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 213 213
Building and Improvements 1,206 1,206
Costs capitalized subsequent to acquisition or completion and valuation provision 237 237
Land 221 221
Building and improvements 1,435 1,435
Total 1,656 1,656
Accumulated depreciation 12/31/2012 584 584
Year Acquired/ Constructed   Jan. 01, 1997
5557 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 59 59
Building and Improvements 335 335
Costs capitalized subsequent to acquisition or completion and valuation provision 44 44
Land 62 62
Building and improvements 376 376
Total 438 438
Accumulated depreciation 12/31/2012 139 139
Year Acquired/ Constructed   Jan. 01, 1997
5463 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 497 497
Building and Improvements 2,751 2,751
Costs capitalized subsequent to acquisition or completion and valuation provision 641 641
Land 560 560
Building and improvements 3,329 3,329
Total 3,889 3,889
Accumulated depreciation 12/31/2012 1,239 1,239
Year Acquired/ Constructed   Jan. 01, 1998
5461 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 261 261
Costs capitalized subsequent to acquisition or completion and valuation provision 1,444 1,444
Land 265 265
Building and improvements 1,440 1,440
Total 1,705 1,705
Accumulated depreciation 12/31/2012 629 629
Year Acquired/ Constructed   Jan. 01, 1998
5481 W Waters Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 558 558
Costs capitalized subsequent to acquisition or completion and valuation provision 2,498 2,498
Land 561 561
Building and improvements 2,495 2,495
Total 3,056 3,056
Accumulated depreciation 12/31/2012 877 877
Year Acquired/ Constructed   Jan. 01, 1999
4515-4519 George Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 2,489 2,489
Initial Cost of Land 633 633
Building and Improvements 3,587 3,587
Costs capitalized subsequent to acquisition or completion and valuation provision 760 760
Land 640 640
Building and improvements 4,340 4,340
Total 4,980 4,980
Accumulated depreciation 12/31/2012 1,281 1,281
Year Acquired/ Constructed   Jan. 01, 2001
6089 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 913 913
Initial Cost of Land 180 180
Building and Improvements 987 987
Costs capitalized subsequent to acquisition or completion and valuation provision 129 129
Land 186 186
Building and improvements 1,110 1,110
Total 1,296 1,296
Accumulated depreciation 12/31/2012 350 350
Year Acquired/ Constructed   Jan. 01, 2004
6091 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 669 669
Initial Cost of Land 140 140
Building and Improvements 730 730
Costs capitalized subsequent to acquisition or completion and valuation provision 88 88
Land 144 144
Building and improvements 814 814
Total 958 958
Accumulated depreciation 12/31/2012 277 277
Year Acquired/ Constructed   Jan. 01, 2004
6103 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 1,095 1,095
Initial Cost of Land 220 220
Building and Improvements 1,160 1,160
Costs capitalized subsequent to acquisition or completion and valuation provision 128 128
Land 226 226
Building and improvements 1,282 1,282
Total 1,508 1,508
Accumulated depreciation 12/31/2012 418 418
Year Acquired/ Constructed   Jan. 01, 2004
6201 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 1,016 1,016
Initial Cost of Land 200 200
Building and Improvements 1,107 1,107
Costs capitalized subsequent to acquisition or completion and valuation provision 164 164
Land 205 205
Building and improvements 1,266 1,266
Total 1,471 1,471
Accumulated depreciation 12/31/2012 475 475
Year Acquired/ Constructed   Jan. 01, 2004
6203 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 1,274 1,274
Initial Cost of Land 300 300
Building and Improvements 1,460 1,460
Costs capitalized subsequent to acquisition or completion and valuation provision 101 101
Land 311 311
Building and improvements 1,550 1,550
Total 1,861 1,861
Accumulated depreciation 12/31/2012 642 642
Year Acquired/ Constructed   Jan. 01, 2004
6205 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 1,215 1,215
Initial Cost of Land 270 270
Building and Improvements 1,363 1,363
Costs capitalized subsequent to acquisition or completion and valuation provision 146 146
Land 278 278
Building and improvements 1,501 1,501
Total 1,779 1,779
Accumulated depreciation 12/31/2012 352 352
Year Acquired/ Constructed   Jan. 01, 2004
6101 Johns Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Encumbrances 781 781
Initial Cost of Land 210 210
Building and Improvements 833 833
Costs capitalized subsequent to acquisition or completion and valuation provision 92 92
Land 216 216
Building and improvements 919 919
Total 1,135 1,135
Accumulated depreciation 12/31/2012 337 337
Year Acquired/ Constructed   Jan. 01, 2004
4908 Tampa West Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Tampa, FL
Initial Cost of Land 2,622 2,622
Building and Improvements 8,643 8,643
Costs capitalized subsequent to acquisition or completion and valuation provision (820) (820)
Land 2,635 2,635
Building and improvements 7,810 7,810
Total 10,445 10,445
Accumulated depreciation 12/31/2012 2,121 2,121
Year Acquired/ Constructed   Jan. 01, 2005
7201-7281 Bryan Dairy Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Largo, FL
Initial Cost of Land 1,895 1,895
Building and Improvements 5,408 5,408
Costs capitalized subsequent to acquisition or completion and valuation provision (1,492) (1,492)
Land 1,365 1,365
Building and improvements 4,446 4,446
Total 5,811 5,811
Accumulated depreciation 12/31/2012 908 908
Year Acquired/ Constructed   Jan. 01, 2006
11701 Belcher Road South [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Largo, FL
Initial Cost of Land 1,657 1,657
Building and Improvements 2,768 2,768
Costs capitalized subsequent to acquisition or completion and valuation provision (1,595) (1,595)
Land 852 852
Building and improvements 1,978 1,978
Total 2,830 2,830
Accumulated depreciation 12/31/2012 616 616
Year Acquired/ Constructed   Jan. 01, 2006
4900- 4914 Creekside Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Clearwater, FL
Initial Cost of Land 3,702 3,702
Building and Improvements 7,338 7,338
Costs capitalized subsequent to acquisition or completion and valuation provision (3,461) (3,461)
Land 2,221 2,221
Building and improvements 5,358 5,358
Total 7,579 7,579
Accumulated depreciation 12/31/2012 1,588 1,588
Year Acquired/ Constructed   Jan. 01, 2006
12345 Starkey Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Largo, FL
Initial Cost of Land 898 898
Building and Improvements 2,078 2,078
Costs capitalized subsequent to acquisition or completion and valuation provision (462) (462)
Land 599 599
Building and improvements 1,915 1,915
Total 2,514 2,514
Accumulated depreciation 12/31/2012 700 700
Year Acquired/ Constructed   Jan. 01, 2006
114 Packham Rd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Stratford, ON
Initial Cost of Land 1,000 1,000
Building and Improvements 3,526 3,526
Costs capitalized subsequent to acquisition or completion and valuation provision 854 854
Land 1,016 1,016
Building and improvements 4,364 4,364
Total 5,380 5,380
Accumulated depreciation 12/31/2012 2,150 2,150
Year Acquired/ Constructed   Jan. 01, 2007
5050 Kendrick Court [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Grand Rapids, MI
Initial Cost of Land 1,721 1,721
Building and Improvements 11,433 11,433
Costs capitalized subsequent to acquisition or completion and valuation provision (2,352) (2,352)
Land 988 988
Building and improvements 9,814 9,814
Total 10,802 10,802
Accumulated depreciation 12/31/2012 6,843 6,843
Year Acquired/ Constructed   Jan. 01, 1994
2250 Delaware Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Des Moines, IA
Initial Cost of Land 277 277
Building and Improvements 1,609 1,609
Costs capitalized subsequent to acquisition or completion and valuation provision (57) (57)
Land 173 173
Building and improvements 1,656 1,656
Total 1,829 1,829
Accumulated depreciation 12/31/2012 721 721
Year Acquired/ Constructed   Jan. 01, 1998
9601A Dessau Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Austin, TX
Encumbrances 1,232 1,232
Initial Cost of Land 255 255
Costs capitalized subsequent to acquisition or completion and valuation provision 1,862 1,862
Land 366 366
Building and improvements 1,751 1,751
Total 2,117 2,117
Accumulated depreciation 12/31/2012 559 559
Year Acquired/ Constructed   Jan. 01, 1999
9601C Dessau Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Austin, TX
Encumbrances 1,416 1,416
Initial Cost of Land 248 248
Costs capitalized subsequent to acquisition or completion and valuation provision 2,184 2,184
Land 355 355
Building and improvements 2,077 2,077
Total 2,432 2,432
Accumulated depreciation 12/31/2012 1,056 1,056
Year Acquired/ Constructed   Jan. 01, 1999
9601B Dessau Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Austin, TX
Encumbrances 1,204 1,204
Initial Cost of Land 248 248
Costs capitalized subsequent to acquisition or completion and valuation provision 1,820 1,820
Land 355 355
Building and improvements 1,713 1,713
Total 2,068 2,068
Accumulated depreciation 12/31/2012 522 522
Year Acquired/ Constructed   Jan. 01, 2000
6266 Hurt Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Horn Lake, MS
Initial Cost of Land 427 427
Costs capitalized subsequent to acquisition or completion and valuation provision 4,092 4,092
Land 387 387
Building and improvements 4,132 4,132
Total 4,519 4,519
Accumulated depreciation 12/31/2012 885 885
Year Acquired/ Constructed   Jan. 01, 2004
665 N. Baldwin Park Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   City of Industry, CA
Encumbrances 4,522 4,522
Initial Cost of Land 2,124 2,124
Building and Improvements 5,219 5,219
Costs capitalized subsequent to acquisition or completion and valuation provision 1,587 1,587
Land 2,143 2,143
Building and improvements 6,787 6,787
Total 8,930 8,930
Accumulated depreciation 12/31/2012 1,813 1,813
Year Acquired/ Constructed   Jan. 01, 2006
27801 Avenue Scott [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Santa Clarita, CA
Encumbrances 7,444 7,444
Initial Cost of Land 2,890 2,890
Building and Improvements 7,020 7,020
Costs capitalized subsequent to acquisition or completion and valuation provision 788 788
Land 2,902 2,902
Building and improvements 7,796 7,796
Total 10,698 10,698
Accumulated depreciation 12/31/2012 1,796 1,796
Year Acquired/ Constructed   Jan. 01, 2006
2610 & 2660 Columbia [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Torrance, CA
Encumbrances 4,828 4,828
Initial Cost of Land 3,008 3,008
Building and Improvements 5,826 5,826
Costs capitalized subsequent to acquisition or completion and valuation provision 804 804
Land 3,031 3,031
Building and improvements 6,607 6,607
Total 9,638 9,638
Accumulated depreciation 12/31/2012 1,344 1,344
Year Acquired/ Constructed   Jan. 01, 2006
433 Alaska Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Torrance, CA
Initial Cost of Land 681 681
Building and Improvements 168 168
Costs capitalized subsequent to acquisition or completion and valuation provision 19 19
Land 684 684
Building and improvements 184 184
Total 868 868
Accumulated depreciation 12/31/2012 80 80
Year Acquired/ Constructed   Jan. 01, 2006
4020 S. Compton Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Los Angeles, CA
Initial Cost of Land 3,800 3,800
Building and Improvements 7,330 7,330
Costs capitalized subsequent to acquisition or completion and valuation provision 71 71
Land 3,825 3,825
Building and improvements 7,376 7,376
Total 11,201 11,201
Accumulated depreciation 12/31/2012 1,412 1,412
Year Acquired/ Constructed   Jan. 01, 2006
6305 El Camino Real [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Initial Cost of Land 1,590 1,590
Building and Improvements 6,360 6,360
Costs capitalized subsequent to acquisition or completion and valuation provision 7,563 7,563
Land 1,590 1,590
Building and improvements 13,923 13,923
Total 15,513 15,513
Accumulated depreciation 12/31/2012 2,516 2,516
Year Acquired/ Constructed   Jan. 01, 2006
2325 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 2,063 2,063
Initial Cost of Land 1,441 1,441
Building and Improvements 1,239 1,239
Costs capitalized subsequent to acquisition or completion and valuation provision 629 629
Land 1,446 1,446
Building and improvements 1,863 1,863
Total 3,309 3,309
Accumulated depreciation 12/31/2012 400 400
Year Acquired/ Constructed   Jan. 01, 2006
2335 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 1,115 1,115
Initial Cost of Land 817 817
Building and Improvements 762 762
Costs capitalized subsequent to acquisition or completion and valuation provision 173 173
Land 821 821
Building and improvements 931 931
Total 1,752 1,752
Accumulated depreciation 12/31/2012 282 282
Year Acquired/ Constructed   Jan. 01, 2006
2345 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 770 770
Initial Cost of Land 562 562
Building and Improvements 456 456
Costs capitalized subsequent to acquisition or completion and valuation provision 88 88
Land 565 565
Building and improvements 541 541
Total 1,106 1,106
Accumulated depreciation 12/31/2012 198 198
Year Acquired/ Constructed   Jan. 01, 2006
2355 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 615 615
Initial Cost of Land 481 481
Building and Improvements 365 365
Costs capitalized subsequent to acquisition or completion and valuation provision 139 139
Land 483 483
Building and improvements 502 502
Total 985 985
Accumulated depreciation 12/31/2012 145 145
Year Acquired/ Constructed   Jan. 01, 2006
2365 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 1,172 1,172
Initial Cost of Land 1,098 1,098
Building and Improvements 630 630
Costs capitalized subsequent to acquisition or completion and valuation provision 121 121
Land 1,102 1,102
Building and improvements 747 747
Total 1,849 1,849
Accumulated depreciation 12/31/2012 223 223
Year Acquired/ Constructed   Jan. 01, 2006
2375 Camino Vida Roble [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Encumbrances 1,511 1,511
Initial Cost of Land 1,210 1,210
Building and Improvements 874 874
Costs capitalized subsequent to acquisition or completion and valuation provision 185 185
Land 1,214 1,214
Building and improvements 1,055 1,055
Total 2,269 2,269
Accumulated depreciation 12/31/2012 316 316
Year Acquired/ Constructed   Jan. 01, 2006
6451 El Camino Real [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Carlsbad, CA
Initial Cost of Land 2,885 2,885
Building and Improvements 1,931 1,931
Costs capitalized subsequent to acquisition or completion and valuation provision 642 642
Land 2,895 2,895
Building and improvements 2,563 2,563
Total 5,458 5,458
Accumulated depreciation 12/31/2012 703 703
Year Acquired/ Constructed   Jan. 01, 2006
8572 Spectrum Lane [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   San Diego, CA
Encumbrances 2,234 2,234
Initial Cost of Land 806 806
Building and Improvements 3,225 3,225
Costs capitalized subsequent to acquisition or completion and valuation provision 439 439
Land 807 807
Building and improvements 3,663 3,663
Total 4,470 4,470
Accumulated depreciation 12/31/2012 718 718
Year Acquired/ Constructed   Jan. 01, 2007
13100 Gregg Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Poway, CA
Initial Cost of Land 1,040 1,040
Building and Improvements 4,160 4,160
Costs capitalized subsequent to acquisition or completion and valuation provision 474 474
Land 1,073 1,073
Building and improvements 4,601 4,601
Total 5,674 5,674
Accumulated depreciation 12/31/2012 1,165 1,165
Year Acquired/ Constructed   Jan. 01, 2007
21730-21748 Marilla St. [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Chatsworth, CA
Encumbrances 3,014 3,014
Initial Cost of Land 2,585 2,585
Building and Improvements 3,210 3,210
Costs capitalized subsequent to acquisition or completion and valuation provision 42 42
Land 2,608 2,608
Building and improvements 3,229 3,229
Total 5,837 5,837
Accumulated depreciation 12/31/2012 688 688
Year Acquired/ Constructed   Jan. 01, 2007
8015 Paramount [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pico Rivera, CA
Initial Cost of Land 3,616 3,616
Building and Improvements 3,902 3,902
Costs capitalized subsequent to acquisition or completion and valuation provision 61 61
Land 3,657 3,657
Building and improvements 3,922 3,922
Total 7,579 7,579
Accumulated depreciation 12/31/2012 1,035 1,035
Year Acquired/ Constructed   Jan. 01, 2007
3365 E. Slauson [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Vernon, CA
Initial Cost of Land 2,367 2,367
Building and Improvements 3,243 3,243
Costs capitalized subsequent to acquisition or completion and valuation provision 40 40
Land 2,396 2,396
Building and improvements 3,254 3,254
Total 5,650 5,650
Accumulated depreciation 12/31/2012 905 905
Year Acquired/ Constructed   Jan. 01, 2007
3015 East Ana [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Initial Cost of Land 19,678 19,678
Building and Improvements 9,321 9,321
Costs capitalized subsequent to acquisition or completion and valuation provision 7,501 7,501
Land 20,144 20,144
Building and improvements 16,356 16,356
Total 36,500 36,500
Accumulated depreciation 12/31/2012 4,035 4,035
Year Acquired/ Constructed   Jan. 01, 2007
19067 Reyes Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Initial Cost of Land 9,281 9,281
Building and Improvements 3,920 3,920
Costs capitalized subsequent to acquisition or completion and valuation provision 202 202
Land 9,381 9,381
Building and improvements 4,022 4,022
Total 13,403 13,403
Accumulated depreciation 12/31/2012 1,309 1,309
Year Acquired/ Constructed   Jan. 01, 2007
24870 Nandina Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Moreno Valley, CA
Initial Cost of Land 13,543 13,543
Costs capitalized subsequent to acquisition or completion and valuation provision 19,589 19,589
Land 6,482 6,482
Building and improvements 26,650 26,650
Total 33,132 33,132
Accumulated depreciation 12/31/2012 114 114
Year Acquired/ Constructed   Jan. 01, 2007
1250 Rancho Conejo Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Initial Cost of Land 1,435 1,435
Building and Improvements 779 779
Costs capitalized subsequent to acquisition or completion and valuation provision 39 39
Land 1,441 1,441
Building and improvements 812 812
Total 2,253 2,253
Accumulated depreciation 12/31/2012 230 230
Year Acquired/ Constructed   Jan. 01, 2007
1260 Rancho Conejo Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Initial Cost of Land 1,353 1,353
Building and Improvements 722 722
Costs capitalized subsequent to acquisition or completion and valuation provision (804) (804)
Land 675 675
Building and improvements 596 596
Total 1,271 1,271
Accumulated depreciation 12/31/2012 221 221
Year Acquired/ Constructed   Jan. 01, 2007
1270 Rancho Conejo Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Initial Cost of Land 1,224 1,224
Building and Improvements 716 716
Costs capitalized subsequent to acquisition or completion and valuation provision 21 21
Land 1,229 1,229
Building and improvements 732 732
Total 1,961 1,961
Accumulated depreciation 12/31/2012 211 211
Year Acquired/ Constructed   Jan. 01, 2007
1280 Rancho Conejo Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Encumbrances 3,033 3,033
Initial Cost of Land 2,043 2,043
Building and Improvements 3,408 3,408
Costs capitalized subsequent to acquisition or completion and valuation provision (240) (240)
Land 2,051 2,051
Building and improvements 3,160 3,160
Total 5,211 5,211
Accumulated depreciation 12/31/2012 492 492
Year Acquired/ Constructed   Jan. 01, 2007
1290 Rancho Conejo Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Encumbrances 2,615 2,615
Initial Cost of Land 1,754 1,754
Building and Improvements 2,949 2,949
Costs capitalized subsequent to acquisition or completion and valuation provision (204) (204)
Land 1,761 1,761
Building and improvements 2,738 2,738
Total 4,499 4,499
Accumulated depreciation 12/31/2012 430 430
Year Acquired/ Constructed   Jan. 01, 2007
100 West Sinclair Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Riverside, CA
Initial Cost of Land 4,894 4,894
Building and Improvements 3,481 3,481
Costs capitalized subsequent to acquisition or completion and valuation provision (4,556) (4,556)
Land 1,819 1,819
Building and improvements 2,000 2,000
Total 3,819 3,819
Accumulated depreciation 12/31/2012 1,008 1,008
Year Acquired/ Constructed   Jan. 01, 2007
14050 Day Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Moreno Valley, CA
Encumbrances 3,505 3,505
Initial Cost of Land 2,538 2,538
Building and Improvements 2,538 2,538
Costs capitalized subsequent to acquisition or completion and valuation provision 291 291
Land 2,565 2,565
Building and improvements 2,801 2,801
Total 5,366 5,366
Accumulated depreciation 12/31/2012 556 556
Year Acquired/ Constructed   Jan. 01, 2008
12925 Marlay Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Fontana, CA
Encumbrances 9,688 9,688
Initial Cost of Land 6,072 6,072
Building and Improvements 7,891 7,891
Costs capitalized subsequent to acquisition or completion and valuation provision 762 762
Land 6,090 6,090
Building and improvements 8,635 8,635
Total 14,725 14,725
Accumulated depreciation 12/31/2012 2,198 2,198
Year Acquired/ Constructed   Jan. 01, 2008
18201-18291 Santa Fe [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Encumbrances 10,393 10,393
Initial Cost of Land 6,720 6,720
Costs capitalized subsequent to acquisition or completion and valuation provision 9,191 9,191
Land 6,897 6,897
Building and improvements 9,014 9,014
Total 15,911 15,911
Accumulated depreciation 12/31/2012 1,152 1,152
Year Acquired/ Constructed   Jan. 01, 2008
1011 Rancho Conejo [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Encumbrances 5,705 5,705
Initial Cost of Land 7,717 7,717
Building and Improvements 2,518 2,518
Costs capitalized subsequent to acquisition or completion and valuation provision (186) (186)
Land 7,752 7,752
Building and improvements 2,296 2,296
Total 10,048 10,048
Accumulated depreciation 12/31/2012 704 704
Year Acquired/ Constructed   Jan. 01, 2008
2300 Corporate Center Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Thousand Oaks, CA
Initial Cost of Land 6,506 6,506
Building and Improvements 4,885 4,885
Costs capitalized subsequent to acquisition or completion and valuation provision (5,485) (5,485)
Land 3,236 3,236
Building and improvements 2,670 2,670
Total 5,906 5,906
Accumulated depreciation 12/31/2012 660 660
Year Acquired/ Constructed   Jan. 01, 2008
20700 Denker Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Encumbrances 5,509 5,509
Initial Cost of Land 5,767 5,767
Building and Improvements 2,538 2,538
Costs capitalized subsequent to acquisition or completion and valuation provision 1,459 1,459
Land 5,964 5,964
Building and improvements 3,801 3,801
Total 9,765 9,765
Accumulated depreciation 12/31/2012 1,122 1,122
Year Acquired/ Constructed   Jan. 01, 2008
18408 Laurel Park Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Initial Cost of Land 2,850 2,850
Building and Improvements 2,850 2,850
Costs capitalized subsequent to acquisition or completion and valuation provision 721 721
Land 2,874 2,874
Building and improvements 3,547 3,547
Total 6,421 6,421
Accumulated depreciation 12/31/2012 592 592
Year Acquired/ Constructed   Jan. 01, 2008
19021 S. Reyes Ave [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Rancho Domingue, CA
Initial Cost of Land 8,183 8,183
Building and Improvements 7,501 7,501
Costs capitalized subsequent to acquisition or completion and valuation provision 756 756
Land 8,545 8,545
Building and improvements 7,895 7,895
Total 16,440 16,440
Accumulated depreciation 12/31/2012 1,105 1,105
Year Acquired/ Constructed   Jan. 01, 2008
2060 Springdale Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Cherry Hill, NJ
Initial Cost of Land 258 258
Building and Improvements 1,436 1,436
Costs capitalized subsequent to acquisition or completion and valuation provision 805 805
Land 258 258
Building and improvements 2,241 2,241
Total 2,499 2,499
Accumulated depreciation 12/31/2012 847 847
Year Acquired/ Constructed   Jan. 01, 1998
111 Whittendale Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Morrestown, NJ
Encumbrances 1,916 1,916
Initial Cost of Land 522 522
Building and Improvements 2,916 2,916
Costs capitalized subsequent to acquisition or completion and valuation provision 395 395
Land 522 522
Building and improvements 3,311 3,311
Total 3,833 3,833
Accumulated depreciation 12/31/2012 977 977
Year Acquired/ Constructed   Jan. 01, 2000
7851 Airport Highway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pennsauken, NJ
Initial Cost of Land 160 160
Building and Improvements 508 508
Costs capitalized subsequent to acquisition or completion and valuation provision 381 381
Land 162 162
Building and improvements 887 887
Total 1,049 1,049
Accumulated depreciation 12/31/2012 275 275
Year Acquired/ Constructed   Jan. 01, 2003
103 Central Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Mt. Laurel, NJ
Initial Cost of Land 610 610
Building and Improvements 1,847 1,847
Costs capitalized subsequent to acquisition or completion and valuation provision 1,131 1,131
Land 619 619
Building and improvements 2,969 2,969
Total 3,588 3,588
Accumulated depreciation 12/31/2012 812 812
Year Acquired/ Constructed   Jan. 01, 2003
7890 Airport Hwy/7015 Central [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pennsauken, NJ
Encumbrances 1,312 1,312
Initial Cost of Land 300 300
Building and Improvements 989 989
Costs capitalized subsequent to acquisition or completion and valuation provision 511 511
Land 425 425
Building and improvements 1,375 1,375
Total 1,800 1,800
Accumulated depreciation 12/31/2012 736 736
Year Acquired/ Constructed   Jan. 01, 2006
600 Creek Road [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Delanco, NJ
Initial Cost of Land 2,125 2,125
Building and Improvements 6,504 6,504
Costs capitalized subsequent to acquisition or completion and valuation provision (1,955) (1,955)
Land 1,557 1,557
Building and improvements 5,117 5,117
Total 6,674 6,674
Accumulated depreciation 12/31/2012 2,382 2,382
Year Acquired/ Constructed   Jan. 01, 2007
1070 Thomas Busch Mem Highway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Pennsauken, NJ
Encumbrances 2,681 2,681
Initial Cost of Land 1,054 1,054
Building and Improvements 2,278 2,278
Costs capitalized subsequent to acquisition or completion and valuation provision 84 84
Land 1,084 1,084
Building and improvements 2,332 2,332
Total 3,416 3,416
Accumulated depreciation 12/31/2012 608 608
Year Acquired/ Constructed   Jan. 01, 2007
6301 Hazeltine National Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Orlando, FL
Encumbrances 3,887 3,887
Initial Cost of Land 909 909
Building and Improvements 4,613 4,613
Costs capitalized subsequent to acquisition or completion and valuation provision 276 276
Land 920 920
Building and improvements 4,878 4,878
Total 5,798 5,798
Accumulated depreciation 12/31/2012 1,559 1,559
Year Acquired/ Constructed   Jan. 01, 2005
12626 Silicon Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   San Antonio, TX
Encumbrances 2,931 2,931
Initial Cost of Land 768 768
Building and Improvements 3,448 3,448
Costs capitalized subsequent to acquisition or completion and valuation provision (216) (216)
Land 779 779
Building and improvements 3,221 3,221
Total 4,000 4,000
Accumulated depreciation 12/31/2012 880 880
Year Acquired/ Constructed   Jan. 01, 2005
3100 Pinson Valley Parkway [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Birmingham, AL
Initial Cost of Land 303 303
Building and Improvements 742 742
Costs capitalized subsequent to acquisition or completion and valuation provision (215) (215)
Land 225 225
Building and improvements 605 605
Total 830 830
Accumulated depreciation 12/31/2012 235 235
Year Acquired/ Constructed   Jan. 01, 2005
10330 I Street [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Omaha, NE
Initial Cost of Land 1,808 1,808
Building and Improvements 8,340 8,340
Costs capitalized subsequent to acquisition or completion and valuation provision (1,457) (1,457)
Land 1,619 1,619
Building and improvements 7,072 7,072
Total 8,691 8,691
Accumulated depreciation 12/31/2012 2,361 2,361
Year Acquired/ Constructed   Jan. 01, 2006
3730 Wheeler Avenue [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Fort Smith, AR
Initial Cost of Land 720 720
Building and Improvements 2,800 2,800
Costs capitalized subsequent to acquisition or completion and valuation provision (561) (561)
Land 589 589
Building and improvements 2,370 2,370
Total 2,959 2,959
Accumulated depreciation 12/31/2012 645 645
Year Acquired/ Constructed   Jan. 01, 2006
3200 Pond Station [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Jefferson County, KY
Initial Cost of Land 2,074 2,074
Costs capitalized subsequent to acquisition or completion and valuation provision 9,890 9,890
Land 2,120 2,120
Building and improvements 9,844 9,844
Total 11,964 11,964
Accumulated depreciation 12/31/2012 1,417 1,417
Year Acquired/ Constructed   Jan. 01, 2007
581 Welltown Road/Tyson Blvd [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Winchester, VA
Encumbrances 7,902 7,902
Initial Cost of Land 2,320 2,320
Costs capitalized subsequent to acquisition or completion and valuation provision 10,855 10,855
Land 2,401 2,401
Building and improvements 10,774 10,774
Total 13,175 13,175
Accumulated depreciation 12/31/2012 1,497 1,497
Year Acquired/ Constructed   Jan. 01, 2007
7501 NW 106th Terrace [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Kansas City, MO
Encumbrances 11,611 11,611
Initial Cost of Land 4,152 4,152
Costs capitalized subsequent to acquisition or completion and valuation provision 13,624 13,624
Land 4,228 4,228
Building and improvements 13,548 13,548
Total 17,776 17,776
Accumulated depreciation 12/31/2012 1,426 1,426
Year Acquired/ Constructed   Jan. 01, 2008
600 Greene Drive [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Location (City/State)   Greenville, KY
Initial Cost of Land 294 294
Building and Improvements 8,570 8,570
Costs capitalized subsequent to acquisition or completion and valuation provision 3 3
Land 296 296
Building and improvements 8,571 8,571
Total 8,867 8,867
Accumulated depreciation 12/31/2012 3,655 3,655
Year Acquired/ Constructed   Jan. 01, 2008
Developments / Land Parcels [Member]
    
Real Estate and Accumulated Depreciation [Line Items]    
Initial Cost of Land 165,660 165,660
Building and Improvements 534 534
Costs capitalized subsequent to acquisition or completion and valuation provision 5,633 5,633
Land 158,824 158,824
Building and improvements 13,003 13,003
Total 171,827 171,827
Accumulated depreciation 12/31/2012 $ 1,562 $ 1,562