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Real Estate and Accumulated Depreciation (Detail) (USD $) In Thousands, unless otherwise specified |  |  |  |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2013 Shopping Centers | Dec. 31, 2013 Shopping Centers Ashburn Village, Ashburn, VA | Dec. 31, 2013 Shopping Centers Ashburn Village, Ashburn, VA Construction One | Dec. 31, 2013 Shopping Centers Ashburn Village, Ashburn, VA Construction One Minimum | Dec. 31, 2013 Shopping Centers Ashburn Village, Ashburn, VA Construction One Maximum | Dec. 31, 2013 Shopping Centers Ashland Square Phase I, Dumfries, VA | Dec. 31, 2013 Shopping Centers Ashland Square Phase I, Dumfries, VA Construction One | Dec. 31, 2013 Shopping Centers Ashland Square Phase I, Dumfries, VA Construction Two | Dec. 31, 2013 Shopping Centers Beacon Center, Alexandria, VA | Dec. 31, 2013 Shopping Centers Beacon Center, Alexandria, VA Minimum | Dec. 31, 2013 Shopping Centers Beacon Center, Alexandria, VA Maximum | Dec. 31, 2013 Shopping Centers Beacon Center, Alexandria, VA Construction One | Dec. 31, 2013 Shopping Centers Beacon Center, Alexandria, VA Construction Two | Dec. 31, 2013 Shopping Centers BJ’s Wholesale Club, Alexandria, VA | Dec. 31, 2013 Shopping Centers Boca Valley Plaza, Boca Raton, FL | Dec. 31, 2013 Shopping Centers Boulevard, Fairfax, VA | Dec. 31, 2013 Shopping Centers Boulevard, Fairfax, VA Construction One | Dec. 31, 2013 Shopping Centers Boulevard, Fairfax, VA Construction Two | Dec. 31, 2013 Shopping Centers Boulevard, Fairfax, VA Construction Three | Dec. 31, 2013 Shopping Centers Briggs Chaney MarketPlace, Silver Spring, MD | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Minimum | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Maximum | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Construction One Minimum | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Construction One Maximum | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Construction Two | Dec. 31, 2013 Shopping Centers Broadlands Village, Ashburn, VA Construction Three | Dec. 31, 2013 Shopping Centers Countryside Marketplace, Sterling, VA | Dec. 31, 2013 Shopping Centers Cranberry Square, Westminster, MD | Dec. 31, 2013 Shopping Centers Cruse MarketPlace, Cumming, GA | Dec. 31, 2013 Shopping Centers Flagship Center, Rockville, MD | Dec. 31, 2013 Shopping Centers French Market, Oklahoma City, OK | Dec. 31, 2013 Shopping Centers French Market, Oklahoma City, OK Construction One | Dec. 31, 2013 Shopping Centers French Market, Oklahoma City, OK Construction Two | Dec. 31, 2013 Shopping Centers Germantown, Germantown, MD | Dec. 31, 2013 Shopping Centers Giant, Milford Mill, MD | Dec. 31, 2013 Shopping Centers The Glen, Woodbridge, VA | Dec. 31, 2013 Shopping Centers The Glen, Woodbridge, VA Construction One | Dec. 31, 2013 Shopping Centers The Glen, Woodbridge, VA Construction Two | Dec. 31, 2013 Shopping Centers Great Eastern, District Heights, MD | Dec. 31, 2013 Shopping Centers Great Eastern, District Heights, MD Construction One | Dec. 31, 2013 Shopping Centers Great Eastern, District Heights, MD Construction Two | Dec. 31, 2013 Shopping Centers Great Falls Center, Great Falls, VA | Dec. 31, 2013 Shopping Centers Hampshire Langley, Takoma, MD | Dec. 31, 2013 Shopping Centers Hunt Club Corners, Apopka, FL | Dec. 31, 2013 Shopping Centers Hunt Club Corners, Apopka, FL Acquisition Date One | Dec. 31, 2013 Shopping Centers Hunt Club Corners, Apopka, FL Acquisition Date Two | Dec. 31, 2013 Shopping Centers Jamestown Place, Altamonte Springs, FL | Dec. 31, 2013 Shopping Centers Kentlands Square I, Gaithersburg, MD | Dec. 31, 2013 Shopping Centers Kentlands Square II, Gaithersburg, MD | Dec. 31, 2013 Shopping Centers Kentlands Place, Gaithersburg, MD | Dec. 31, 2013 Shopping Centers Lansdowne Town Center, Leesburg, VA | Dec. 31, 2013 Shopping Centers Leesburg Pike, Baileys Crossroads, VA | Dec. 31, 2013 Shopping Centers Lumberton Plaza, Lumberton, NJ | Dec. 31, 2013 Shopping Centers Metro Pike Center, Rockville, MD | Dec. 31, 2013 Shopping Centers Shops at Monocacy, Frederick, MD | Dec. 31, 2013 Shopping Centers Shops at Monocacy, Frederick, MD Construction One Minimum | Dec. 31, 2013 Shopping Centers Shops at Monocacy, Frederick, MD Construction One Maximum | Dec. 31, 2013 Shopping Centers Northrock, Warrenton, VA | Dec. 31, 2013 Shopping Centers Olde Forte Village, Ft. Washington, MD | Dec. 31, 2013 Shopping Centers Olde Forte Village, Ft. Washington, MD Construction One Minimum | Dec. 31, 2013 Shopping Centers Olde Forte Village, Ft. Washington, MD Construction One Maximum | Dec. 31, 2013 Shopping Centers Olney, Olney, MD | Dec. 31, 2013 Shopping Centers Orchard Park, Dunwoody, GA | Dec. 31, 2013 Shopping Centers Palm Springs Center, Altamonte Springs, FL | Dec. 31, 2013 Shopping Centers Ravenwood, Baltimore, MD | Dec. 31, 2013 Shopping Centers Ravenwood, Baltimore, MD Construction One | Dec. 31, 2013 Shopping Centers Ravenwood, Baltimore, MD Construction Two | Dec. 31, 2013 Shopping Centers 11503 Rockville Pike/5541 Nicholson Lane, Rockville, MD | Dec. 31, 2013 Shopping Centers 11503 Rockville Pike/5541 Nicholson Lane, Rockville, MD Acquisition Date One | Dec. 31, 2013 Shopping Centers 11503 Rockville Pike/5541 Nicholson Lane, Rockville, MD Acquisition Date Two | Dec. 31, 2013 Shopping Centers 1500 Rockville Pike, Rockville, MD | Dec. 31, 2013 Shopping Centers Seabreeze Plaza, Palm Harbor, FL | Dec. 31, 2013 Shopping Centers Sea Colony (Market Place at), Bethany Beach, DE | Dec. 31, 2013 Shopping Centers Seven Corners, Falls Church, VA | Dec. 31, 2013 Shopping Centers Seven Corners, Falls Church, VA Construction One | Dec. 31, 2013 Shopping Centers Seven Corners, Falls Church, VA Construction Two | Dec. 31, 2013 Shopping Centers Severna Park Marketplace, Severna Park, MD | Dec. 31, 2013 Shopping Centers Shops at Fairfax, Fairfax, VA | Dec. 31, 2013 Shopping Centers Shops at Fairfax, Fairfax, VA Construction One | Dec. 31, 2013 Shopping Centers Shops at Fairfax, Fairfax, VA Construction Two | Dec. 31, 2013 Shopping Centers Smallwood Village Center, Waldorf, MD | Dec. 31, 2013 Shopping Centers Southdale, Glen Burnie, MD | Dec. 31, 2013 Shopping Centers Southdale, Glen Burnie, MD Construction One | Dec. 31, 2013 Shopping Centers Southdale, Glen Burnie, MD Construction Two | Dec. 31, 2013 Shopping Centers Southside Plaza, Richmond, VA | Dec. 31, 2013 Shopping Centers South Dekalb Plaza, Atlanta, GA | Dec. 31, 2013 Shopping Centers Thruway, Winston-Salem, NC | Dec. 31, 2013 Shopping Centers Thruway, Winston-Salem, NC Construction One | Dec. 31, 2013 Shopping Centers Thruway, Winston-Salem, NC Construction Two | Dec. 31, 2013 Shopping Centers Village Center, Centreville, VA | Dec. 31, 2013 Shopping Centers Westview Village, Frederick, MD | Dec. 31, 2013 Shopping Centers White Oak, Silver Spring, MD | Dec. 31, 2013 Shopping Centers White Oak, Silver Spring, MD Construction One | Dec. 31, 2013 Shopping Centers White Oak, Silver Spring, MD Construction Two | Dec. 31, 2013 Shopping Centers Other Buildings / Improvements | Dec. 31, 2013 Mixed-Use Properties | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Minimum | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Maximum | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Construction One | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Construction Two | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Construction Three | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Construction Four | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Construction Five | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Acquisition Date One | Dec. 31, 2013 Mixed-Use Properties Avenel Business Park, Gaithersburg, MD Acquisition Date Two | Dec. 31, 2013 Mixed-Use Properties Clarendon Center, Arlington, VA (1) | Dec. 31, 2013 Mixed-Use Properties Clarendon Center, Arlington, VA (1) Acquisition Date One | Dec. 31, 2013 Mixed-Use Properties Clarendon Center, Arlington, VA (1) Acquisition Date Two | Dec. 31, 2013 Mixed-Use Properties Clarendon Center, Arlington, VA (1) Acquisition Date Three | Dec. 31, 2013 Mixed-Use Properties Crosstown Business Center, Tulsa, OK | Dec. 31, 2013 Mixed-Use Properties 601 Pennsylvania Ave., Washington, DC | Dec. 31, 2013 Mixed-Use Properties Washington Square, Alexandria, VA | Dec. 31, 2013 Mixed-Use Properties Washington Square, Alexandria, VA Construction One | Dec. 31, 2013 Mixed-Use Properties Washington Square, Alexandria, VA Construction Two | Dec. 31, 2013 Development Land | Dec. 31, 2013 Development Land Ashland Square Phase II, Manassas, VA | Dec. 31, 2013 Development Land New Market, New Market, MD | Dec. 31, 2013 Development Land Park Van Ness, Washington, DC | Dec. 31, 2013 Development Land Park Van Ness, Washington, DC Development Date One | Dec. 31, 2013 Development Land Park Van Ness, Washington, DC Development Date Two
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial Basis | $ 735,254 |  |  |  | $ 680,453 | $ 11,431 |  |  |  | $ 1,178 |  |  | $ 1,493 |  |  |  |  | $ 22,623 | $ 16,720 | $ 4,883 |  |  |  | $ 27,037 | $ 5,316 |  |  |  |  |  |  | $ 28,912 | $ 31,578 | $ 12,226 | $ 160 | $ 5,781 |  |  | $ 3,576 | $ 998 | $ 12,918 |  |  | $ 4,993 |  |  | $ 41,750 | $ 3,159 | $ 12,584 |  |  | $ 14,055 | $ 14,379 | $ 72,473 | $ 1,425 | $ 6,545 | $ 2,418 | $ 4,400 | $ 33,123 | $ 9,541 |  |  | $ 12,686 | $ 15,933 |  |  | $ 1,884 | $ 19,377 | $ 18,365 | $ 1,245 |  |  | $ 14,861 |  |  | $ 22,547 | $ 24,526 | $ 2,920 | $ 4,848 |  |  | $ 63,254 | $ 2,708 |  |  | $ 17,819 | $ 3,650 |  |  | $ 6,728 | $ 2,474 | $ 4,778 |  |  | $ 16,502 | $ 5,146 | $ 6,277 |  |  |  | $ 45,179 | $ 21,459 |  |  |  |  |  |  |  |  |  | $ 12,753 | [1] |  |  |  |  |  |  | $ 3,454 | $ 5,479 | $ 2,034 |  |  | $ 9,622 | $ 5,292 | $ 2,088 | $ 2,242 |  |
Cost Capitalized Subsequent to Acquisition | 718,525 |  |  |  | 387,645 | 19,433 |  |  |  | 7,503 |  |  | 18,283 |  |  |  |  | 0 | 1,289 | 4,746 |  |  |  | 2,926 | 25,118 |  |  |  |  |  |  | 2,753 | 217 | 175 | 9 | 12,521 |  |  | 742 | 558 | 7,528 |  |  | 10,667 |  |  | 2,292 | 3,327 | 2,681 |  |  | 744 | 103 | 5 | 7,134 | 36,016 | 6,161 | 11,205 | 1,316 | 13,797 |  |  | 14,702 | 6,499 |  |  | 1,672 | 413 | 383 | 4,107 |  |  | 11,700 |  |  | 135 | 1,298 | 26 | 43,649 |  |  | 55 | 9,606 |  |  | 7,575 | 20,754 |  |  | 9,148 | 3,899 | 23,108 |  |  | 1,854 | 22,143 | 5,351 |  |  | 127 | 328,906 | 26,441 |  |  |  |  |  |  |  |  |  | 185,418 | [1] |  |  |  |  |  |  | 6,329 | 59,651 | 51,067 |  |  | 1,974 | 1,688 | 286 | 0 |  |
Basis at Close of Period, Land | 357,397 |  |  |  | 318,943 | 6,764 |  |  |  | 1,178 |  |  | 0 |  |  |  |  | 22,623 | 5,735 | 3,687 |  |  |  | 9,789 | 5,300 |  |  |  |  |  |  | 7,666 | 6,700 | 3,920 | 169 | 1,118 |  |  | 2,034 | 422 | 5,299 |  |  | 3,785 |  |  | 14,766 | 1,856 | 4,822 |  |  | 4,455 | 5,006 | 20,500 | 1,425 | 6,546 | 1,132 | 950 | 26,064 | 9,260 |  |  | 12,686 | 5,409 |  |  | 0 | 7,751 | 5,739 | 703 |  |  | 22,113 |  |  | 18,723 | 8,665 | 1,146 | 4,913 |  |  | 12,700 | 992 |  |  | 6,402 | 0 |  |  | 1,878 | 703 | 5,496 |  |  | 7,851 | 5,153 | 4,649 |  |  |  | 26,858 | 3,756 |  |  |  |  |  |  |  |  |  | 16,287 | [1] |  |  |  |  |  |  | 604 | 5,667 | 544 |  |  | 11,596 | 6,980 | 2,374 | 2,242 |  |
Basis at Close of Period, Building and Improvements | 1,100,221 |  |  |  | 747,334 | 24,100 |  |  |  | 7,503 |  |  | 18,682 |  |  |  |  | 0 | 12,274 | 5,942 |  |  |  | 20,174 | 25,134 |  |  |  |  |  |  | 23,999 | 25,095 | 8,481 | 0 | 17,184 |  |  | 2,284 | 1,134 | 15,147 |  |  | 11,875 |  |  | 29,276 | 4,630 | 10,443 |  |  | 10,344 | 9,476 | 51,978 | 7,134 | 36,015 | 7,447 | 14,655 | 8,375 | 14,078 |  |  | 14,702 | 17,023 |  |  | 3,556 | 12,039 | 13,009 | 4,649 |  |  | 4,448 |  |  | 3,959 | 17,159 | 1,800 | 43,584 |  |  | 50,609 | 11,322 |  |  | 18,992 | 23,782 |  |  | 13,998 | 5,670 | 22,285 |  |  | 10,505 | 22,136 | 6,979 |  |  | 127 | 347,227 | 44,144 |  |  |  |  |  |  |  |  |  | 181,884 | [1] |  |  |  |  |  |  | 9,179 | 59,463 | 52,557 |  |  | 5,660 | 0 | 0 | 5,660 |  |
Basis at Close of Period, Leasehold Interests | 1,821 |  |  |  | 1,821 | 0 |  |  |  | 0 |  |  | 1,094 |  |  |  |  | 0 | 0 | 0 |  |  |  | 0 | 0 |  |  |  |  |  |  | 0 | 0 | 0 | 0 | 0 |  |  | 0 | 0 | 0 |  |  | 0 |  |  | 0 | 0 | 0 |  |  | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |  |  | 0 | 0 |  |  | 0 | 0 | 0 | 0 |  |  | 0 |  |  | 0 | 0 | 0 | 0 |  |  | 0 | 0 |  |  | 0 | 622 |  |  | 0 | 0 | 105 |  |  | 0 | 0 | 0 |  |  |  | 0 | 0 |  |  |  |  |  |  |  |  |  | 0 | [1] |  |  |  |  |  |  | 0 | 0 | 0 |  |  | 0 | 0 | 0 | 0 |  |
Total | 1,459,439 | 1,466,068 | 1,417,845 | 1,224,036 | 1,068,098 | 30,864 |  |  |  | 8,681 |  |  | 19,776 |  |  |  |  | 22,623 | 18,009 | 9,629 |  |  |  | 29,963 | 30,434 |  |  |  |  |  |  | 31,665 | 31,795 | 12,401 | 169 | 18,302 |  |  | 4,318 | 1,556 | 20,446 |  |  | 15,660 |  |  | 44,042 | 6,486 | 15,265 |  |  | 14,799 | 14,482 | 72,478 | 8,559 | 42,561 | 8,579 | 15,605 | 34,439 | 23,338 |  |  | 27,388 | 22,432 |  |  | 3,556 | 19,790 | 18,748 | 5,352 |  |  | 26,561 |  |  | 22,682 | 25,824 | 2,946 | 48,497 |  |  | 63,309 | 12,314 |  |  | 25,394 | 24,404 |  |  | 15,876 | 6,373 | 27,886 |  |  | 18,356 | 27,289 | 11,628 |  |  | 127 | 374,085 | 47,900 |  |  |  |  |  |  |  |  |  | 198,171 | [1] |  |  |  |  |  |  | 9,783 | 65,130 | 53,101 |  |  | 17,256 | 6,980 | 2,374 | 7,902 |  |
Accumulated Depreciation | 364,663 | 353,305 | 326,397 | 296,786 | 248,601 | 10,217 |  |  |  | 444 |  |  | 12,195 |  |  |  |  | 0 | 3,085 | 2,153 |  |  |  | 5,468 | 7,598 |  |  |  |  |  |  | 5,826 | 1,408 | 2,116 |  | 9,257 |  |  | 1,325 | 1,010 | 6,716 |  |  | 7,412 |  |  | 4,134 | 3,232 | 2,195 |  |  | 2,223 | 2,716 | 2,924 | 2,550 | 8,968 | 5,464 | 11,276 | 570 | 3,871 |  |  | 1,795 | 5,044 |  |  | 3,067 | 2,000 | 2,880 | 2,453 |  |  | 361 |  |  | 818 | 3,555 | 270 | 24,366 |  |  | 2,844 | 6,375 |  |  | 4,286 | 20,233 |  |  | 10,661 | 4,050 | 12,943 |  |  | 5,393 | 3,141 | 5,616 |  |  | 77 | 116,062 | 30,861 |  |  |  |  |  |  |  |  |  | 15,871 | [1] |  |  |  |  |  |  | 6,599 | 44,670 | 18,061 |  |  | 0 | 0 | 0 | 0 |  |
Book Value | 1,094,776 | 1,112,763 |  |  | 819,497 | 20,647 |  |  |  | 8,237 |  |  | 7,581 |  |  |  |  | 22,623 | 14,924 | 7,476 |  |  |  | 24,495 | 22,836 |  |  |  |  |  |  | 25,839 | 30,387 | 10,285 | 169 | 9,045 |  |  | 2,993 | 546 | 13,730 |  |  | 8,248 |  |  | 39,908 | 3,254 | 13,070 |  |  | 12,576 | 11,766 | 69,554 | 6,009 | 33,593 | 3,115 | 4,329 | 33,869 | 19,467 |  |  | 25,593 | 17,388 |  |  | 489 | 17,790 | 15,868 | 2,899 |  |  | 26,200 |  |  | 21,864 | 22,269 | 2,676 | 24,131 |  |  | 60,465 | 5,939 |  |  | 21,108 | 4,171 |  |  | 5,215 | 2,323 | 14,943 |  |  | 12,963 | 24,148 | 6,012 |  |  | 50 | 258,023 | 17,039 |  |  |  |  |  |  |  |  |  | 182,300 | [1] |  |  |  |  |  |  | 3,184 | 20,460 | 35,040 |  |  | 17,256 | 6,980 | 2,374 | 7,902 |  |
Related Debt | $ 820,068 | $ 789,776 |  |  | $ 637,601 | $ 30,894 |  |  |  | $ 0 |  |  | $ 34,391 |  |  |  |  | $ 11,795 | $ 11,159 | $ 6,451 |  |  |  | $ 16,419 | $ 19,639 |  |  |  |  |  |  | $ 16,501 | $ 19,118 | $ 0 | $ 0 | $ 0 |  |  | $ 0 | $ 0 | $ 9,444 |  |  | $ 0 |  |  | $ 15,598 | $ 17,718 | $ 6,233 |  |  | $ 8,649 | $ 7,853 | $ 40,974 | $ 0 | $ 35,981 | $ 17,123 | $ 0 | $ 15,394 | $ 14,610 |  |  | $ 14,802 | $ 11,950 |  |  | $ 0 | $ 10,930 | $ 9,921 | $ 16,088 |  |  | $ 0 |  |  | $ 0 | $ 17,894 | $ 0 | $ 70,856 |  |  | $ 36,075 | $ 9,677 |  |  | $ 0 | $ 0 |  |  | $ 0 | $ 0 | $ 42,462 |  |  | $ 14,849 | $ 0 | $ 26,153 |  |  | $ 0 | $ 182,467 | $ 31,093 |  |  |  |  |  |  |  |  |  | $ 118,128 | [1] |  |  |  |  |  |  | $ 0 | $ 0 | $ 33,246 |  |  | $ 0 | $ 0 | $ 0 | $ 0 |  |
Date of Construction |  |  |  |  |  |  | 1994 | 2000 | 2006 |  | 2007 | 2013 |  |  |  | 1960 | 1974 |  |  |  | 1969 | 1999 | 2009 |  |  |  |  | 2002 | 2003 | 2004 | 2006 |  |  |  | 1972 |  | 1972 | 1998 | 1990 | 1959 |  | 1993 | 2005 |  | 1958 | 1960 |  | 1960 |  |  |  |  | 2002 |  | 2005 | 2006 | 1965 | 1975 |  |  | 2003 | 2004 | 2009 |  | 2003 | 2004 | 1972 |  |  |  | 1959 | 2006 |  |  |  |  |  |  |  | 1956 | 1997 |  |  | 1975 | 1999 |  |  | 1962 | 1986 | 1958 | 1970 |  | 1955 | 1965 | 1990 | 2009 |  | 1958 | 1967 |  |  |  |  |  | 1984 | 1986 | 1990 | 1998 | 2000 |  |  | 2010 | [1] |  |  |  |  |  |  | 1974 | 1986 |  | 1952 | 2000 |  |  |  |  |  |
Date Acquired |  |  |  |  |  | 1994-03 |  |  |  | 2004-12 |  |  | 1972-01 |  |  |  |  | 2008-03 | 2004-02 | 1994-04 |  |  |  | 2004-04 | 2002-03 |  |  |  |  |  |  | 2004-02 | 2011-09 | 2004-03 | 1972-01 | 1974-03 |  |  | 1993-08 | 1972-01 | 1994-06 |  |  | 1972-01 |  |  | 2008-03 | 1972-01 |  | 2006-06 | 2012-12 | 2005-11 | 2002-09 | 2011-09 | 2004-01 | 2002-11 | 1966-02 | 1975-12 | 2010-12 | 2003-11 |  |  | 2008-01 | 2007-03 |  |  | 1975-11 | 2007-07 | 2005-03 | 1972-01 |  |  |  | 2010-10 | 2012-12 | 2012-12 | 2005-11 | 2008-03 | 1973-07 |  |  | 2011-09 | 1975-06 |  |  | 2006-01 | 1972-01 |  |  | 1972-01 | 1976-02 | 1972-05 |  |  | 1993-08 | 2011-07 | 1972-01 |  |  |  |  |  |  |  |  |  |  |  |  | 1984-12 | 1984-02 |  |  | 1973-07 | [1] | 1996-01 | [1] | 2002-04 | [1] | 1975-10 | 1973-07 | 1973-07 |  |  |  | 2004-12 | 2005-09 |  | 1973-07 | 2011-02
Buildings and Improvements Depreciable Lives in Years |  |  |  |  |  | 40 years |  |  |  | 20 years |  |  |  | 40 years | 50 years |  |  | 0 years | 40 years | 40 years |  |  |  | 40 years |  | 40 years | 50 years |  |  |  |  | 40 years | 40 years | 40 years | 0 years | 50 years |  |  | 40 years | 40 years | 40 years |  |  | 40 years |  |  | 40 years | 40 years | 40 years |  |  | 40 years | 40 years | 40 years | 50 years | 50 years | 40 years | 40 years | 40 years | 50 years |  |  | 50 years | 40 years |  |  | 40 years | 40 years | 40 years | 40 years |  |  | 40 years |  |  | 5 years | 40 years | 40 years | 40 years |  |  | 40 years | 50 years |  |  | 40 years | 40 years |  |  | 40 years | 40 years | 40 years |  |  | 40 years | 50 years | 40 years |  |  |  |  |  | 35 years | 40 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40 years | 35 years | 50 years |  |  |  |  |  |  |  |
[1] | Includes the North and South Blocks and Residential

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- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765 + Details
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- Definition Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6812-107765 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition The cumulative amount of depreciation for real estate property held for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(3)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 7 + Details
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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of real estate owned for income production and capital accretion potential, not otherwise specified in the existing taxonomy. Such real estate excludes that which is occupied or used in the business, for entertainment purposes, or held in inventory for specific purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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