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Schedule III - REAL ESTATE ASSETS AND ACCUMULATED DEPRECIATION (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances $ 1,859,876      
Initial Cost, Land 816,810      
Initial Cost, Buildings and Improvements 4,947,278      
Costs Capitalized Subsequent to Acquisition 1,555,488      
Sales of Outparcel Land (40,968)      
Gross Amounts at Which Carried at Close of Period, Land 793,944      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 6,484,664      
Gross Amounts at Which Carried at Close of Period, Total 7,278,608 $ 7,621,930 $ 7,947,647 $ 8,240,521
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (2,493,082) $ (2,465,095) $ (2,427,108) $ (2,382,568)
Land and buildings and improvements, gross $ 7,735,000      
Buildings        
Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 40 years      
Certain Improvements | Minimum        
Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 10 years      
Certain Improvements | Maximum        
Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 20 years      
Equipment and Fixtures | Minimum        
Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 7 years      
Equipment and Fixtures | Maximum        
Real Estate and Accumulated Depreciation [Line Items]        
Estimated useful life 10 years      
Acadiana Mall, Lafayette, LA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances $ 119,760      
Initial Cost, Land 25,083      
Initial Cost, Buildings and Improvements 145,769      
Costs Capitalized Subsequent to Acquisition (102,215)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 7,927      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 60,710      
Gross Amounts at Which Carried at Close of Period, Total 68,637      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (4,635)      
Alamance Crossing, Burlington, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 45,464      
Initial Cost, Land 20,853      
Initial Cost, Buildings and Improvements 62,852      
Costs Capitalized Subsequent to Acquisition 39,634      
Sales of Outparcel Land (3,373)      
Gross Amounts at Which Carried at Close of Period, Land 17,481      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 102,485      
Gross Amounts at Which Carried at Close of Period, Total 119,966      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (37,055)      
Arbor Place, Atlanta (Douglasville), GA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 109,209      
Initial Cost, Land 8,508      
Initial Cost, Buildings and Improvements 95,088      
Costs Capitalized Subsequent to Acquisition 28,164      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 8,508      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 123,252      
Gross Amounts at Which Carried at Close of Period, Total 131,760      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (70,005)      
Asheville Mall, Asheville, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 66,038      
Initial Cost, Land 7,139      
Initial Cost, Buildings and Improvements 58,386      
Costs Capitalized Subsequent to Acquisition 65,419      
Sales of Outparcel Land (805)      
Gross Amounts at Which Carried at Close of Period, Land 6,334      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 123,805      
Gross Amounts at Which Carried at Close of Period, Total 130,139      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (58,609)      
Brookfield Square, Brookfield, WI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 8,172      
Initial Cost, Land 8,996      
Initial Cost, Buildings and Improvements 78,533      
Costs Capitalized Subsequent to Acquisition 77,878      
Sales of Outparcel Land (4,789)      
Gross Amounts at Which Carried at Close of Period, Land 20,621      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 139,997      
Gross Amounts at Which Carried at Close of Period, Total 160,618      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (73,080)      
Burnsville Center, Burnsville, MN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 67,312      
Initial Cost, Land 12,804      
Initial Cost, Buildings and Improvements 71,748      
Costs Capitalized Subsequent to Acquisition 59,357      
Sales of Outparcel Land (1,157)      
Gross Amounts at Which Carried at Close of Period, Land 16,102      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 126,650      
Gross Amounts at Which Carried at Close of Period, Total 142,752      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (64,697)      
Cary Towne Center, Cary, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 43,716      
Initial Cost, Land 23,688      
Initial Cost, Buildings and Improvements 74,432      
Costs Capitalized Subsequent to Acquisition (67,149)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 30,971      
Gross Amounts at Which Carried at Close of Period, Total 30,971      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
CherryVale Mall, Rockford, IL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 11,892      
Initial Cost, Buildings and Improvements 64,117      
Costs Capitalized Subsequent to Acquisition 58,028      
Sales of Outparcel Land (1,667)      
Gross Amounts at Which Carried at Close of Period, Land 11,608      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 120,762      
Gross Amounts at Which Carried at Close of Period, Total 132,370      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (55,397)      
Cross Creek Mall, Fayetteville, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 115,513      
Initial Cost, Land 19,155      
Initial Cost, Buildings and Improvements 104,378      
Costs Capitalized Subsequent to Acquisition 49,457      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 31,539      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 141,451      
Gross Amounts at Which Carried at Close of Period, Total 172,990      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (60,311)      
Dakota Square Mall, Minot, ND        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 4,552      
Initial Cost, Buildings and Improvements 87,625      
Costs Capitalized Subsequent to Acquisition 26,417      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 4,473      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 114,121      
Gross Amounts at Which Carried at Close of Period, Total 118,594      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (24,203)      
East Towne Mall, Madison, WI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 4,496      
Initial Cost, Buildings and Improvements 63,867      
Costs Capitalized Subsequent to Acquisition 72,273      
Sales of Outparcel Land (715)      
Gross Amounts at Which Carried at Close of Period, Land 3,781      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 136,140      
Gross Amounts at Which Carried at Close of Period, Total 139,921      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (54,240)      
EastGate Mall, Cincinnati, OH        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 34,057      
Initial Cost, Land 13,046      
Initial Cost, Buildings and Improvements 44,949      
Costs Capitalized Subsequent to Acquisition 34,818      
Sales of Outparcel Land (1,017)      
Gross Amounts at Which Carried at Close of Period, Land 16,827      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 74,969      
Gross Amounts at Which Carried at Close of Period, Total 91,796      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (32,035)      
Eastland Mall, Bloomington, IL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 5,746      
Initial Cost, Buildings and Improvements 75,893      
Costs Capitalized Subsequent to Acquisition (54,540)      
Sales of Outparcel Land (753)      
Gross Amounts at Which Carried at Close of Period, Land 3,150      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 23,196      
Gross Amounts at Which Carried at Close of Period, Total 26,346      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Fayette Mall, Lexington, KY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 152,264      
Initial Cost, Land 25,205      
Initial Cost, Buildings and Improvements 84,256      
Costs Capitalized Subsequent to Acquisition 106,246      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 25,206      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 190,501      
Gross Amounts at Which Carried at Close of Period, Total 215,707      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (67,310)      
Frontier Mall, Cheyenne, WY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,681      
Initial Cost, Buildings and Improvements 15,858      
Costs Capitalized Subsequent to Acquisition 22,772      
Sales of Outparcel Land (80)      
Gross Amounts at Which Carried at Close of Period, Land 2,601      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 38,630      
Gross Amounts at Which Carried at Close of Period, Total 41,231      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (25,913)      
Greenbrier Mall, Chesapeake, VA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 68,101      
Initial Cost, Land 3,181      
Initial Cost, Buildings and Improvements 107,355      
Costs Capitalized Subsequent to Acquisition 17,791      
Sales of Outparcel Land (626)      
Gross Amounts at Which Carried at Close of Period, Land 2,555      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 125,146      
Gross Amounts at Which Carried at Close of Period, Total 127,701      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (48,288)      
Hamilton Place, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 102,429      
Initial Cost, Land 3,532      
Initial Cost, Buildings and Improvements 42,619      
Costs Capitalized Subsequent to Acquisition 76,555      
Sales of Outparcel Land (441)      
Gross Amounts at Which Carried at Close of Period, Land 8,484      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 113,781      
Gross Amounts at Which Carried at Close of Period, Total 122,265      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (61,421)      
Hanes Mall, Winston-Salem, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 17,176      
Initial Cost, Buildings and Improvements 133,376      
Costs Capitalized Subsequent to Acquisition 60,016      
Sales of Outparcel Land (948)      
Gross Amounts at Which Carried at Close of Period, Land 18,629      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 190,991      
Gross Amounts at Which Carried at Close of Period, Total 209,620      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (85,272)      
Harford Mall, Bel Air, MD        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 8,699      
Initial Cost, Buildings and Improvements 45,704      
Costs Capitalized Subsequent to Acquisition 22,805      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 8,699      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 68,509      
Gross Amounts at Which Carried at Close of Period, Total 77,208      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (30,258)      
Hickory Point Mall, Forsyth, IL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 27,446      
Initial Cost, Land 10,731      
Initial Cost, Buildings and Improvements 31,728      
Costs Capitalized Subsequent to Acquisition (24,608)      
Sales of Outparcel Land (293)      
Gross Amounts at Which Carried at Close of Period, Land 4,336      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 13,222      
Gross Amounts at Which Carried at Close of Period, Total 17,558      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (1,796)      
Honey Creek Mall, Terre Haute, IN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 24,027      
Initial Cost, Land 3,108      
Initial Cost, Buildings and Improvements 83,358      
Costs Capitalized Subsequent to Acquisition (69,999)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,108      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 13,359      
Gross Amounts at Which Carried at Close of Period, Total 16,467      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Imperial Valley Mall, El Centro, CA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 35,378      
Initial Cost, Buildings and Improvements 70,549      
Costs Capitalized Subsequent to Acquisition 8,719      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 40,579      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 74,067      
Gross Amounts at Which Carried at Close of Period, Total 114,646      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (15,162)      
Jefferson Mall, Louisville, KY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 63,379      
Initial Cost, Land 13,125      
Initial Cost, Buildings and Improvements 40,234      
Costs Capitalized Subsequent to Acquisition 46,836      
Sales of Outparcel Land (521)      
Gross Amounts at Which Carried at Close of Period, Land 17,850      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 81,824      
Gross Amounts at Which Carried at Close of Period, Total 99,674      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (36,074)      
Kirkwood Mall, Bismarck, ND        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 3,368      
Initial Cost, Buildings and Improvements 118,945      
Costs Capitalized Subsequent to Acquisition 29,480      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,447      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 148,346      
Gross Amounts at Which Carried at Close of Period, Total 151,793      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (26,308)      
Laurel Park Place, Livonia, MI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 13,289      
Initial Cost, Buildings and Improvements 92,579      
Costs Capitalized Subsequent to Acquisition 18,014      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 13,289      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 110,593      
Gross Amounts at Which Carried at Close of Period, Total 123,882      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (47,483)      
Layton Hills Mall, Layton, UT        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 20,464      
Initial Cost, Buildings and Improvements 99,836      
Costs Capitalized Subsequent to Acquisition (32,194)      
Sales of Outparcel Land (464)      
Gross Amounts at Which Carried at Close of Period, Land 13,761      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 73,881      
Gross Amounts at Which Carried at Close of Period, Total 87,642      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (9,172)      
Mall del Norte, Laredo, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 21,734      
Initial Cost, Buildings and Improvements 142,049      
Costs Capitalized Subsequent to Acquisition 51,941      
Sales of Outparcel Land (149)      
Gross Amounts at Which Carried at Close of Period, Land 21,667      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 193,908      
Gross Amounts at Which Carried at Close of Period, Total 215,575      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (87,961)      
Mayfaire Town Center, Wilmington, NC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 26,333      
Initial Cost, Buildings and Improvements 101,087      
Costs Capitalized Subsequent to Acquisition 16,424      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 26,443      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 117,401      
Gross Amounts at Which Carried at Close of Period, Total 143,844      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (12,460)      
Meridian Mall, Lansing, MI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,797      
Initial Cost, Buildings and Improvements 103,678      
Costs Capitalized Subsequent to Acquisition 69,052      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 4,500      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 171,027      
Gross Amounts at Which Carried at Close of Period, Total 175,527      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (84,959)      
Mid Rivers Mall, St. Peters, MO        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 16,384      
Initial Cost, Buildings and Improvements 170,582      
Costs Capitalized Subsequent to Acquisition 21,040      
Sales of Outparcel Land (4,174)      
Gross Amounts at Which Carried at Close of Period, Land 12,210      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 191,622      
Gross Amounts at Which Carried at Close of Period, Total 203,832      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (64,003)      
Monroeville Mall, Pittsburgh, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 22,911      
Initial Cost, Buildings and Improvements 177,214      
Costs Capitalized Subsequent to Acquisition 80,329      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 25,432      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 255,022      
Gross Amounts at Which Carried at Close of Period, Total 280,454      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (96,888)      
Northgate Mall, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,330      
Initial Cost, Buildings and Improvements 8,960      
Costs Capitalized Subsequent to Acquisition 26,109      
Sales of Outparcel Land (492)      
Gross Amounts at Which Carried at Close of Period, Land 3,406      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 33,501      
Gross Amounts at Which Carried at Close of Period, Total 36,907      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (11,669)      
Northpark Mall, Joplin, MO        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 9,977      
Initial Cost, Buildings and Improvements 65,481      
Costs Capitalized Subsequent to Acquisition 44,259      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,071      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 108,646      
Gross Amounts at Which Carried at Close of Period, Total 119,717      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (48,465)      
Northwoods Mall, North Charleston, SC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 65,193      
Initial Cost, Land 14,867      
Initial Cost, Buildings and Improvements 49,647      
Costs Capitalized Subsequent to Acquisition 29,883      
Sales of Outparcel Land (2,339)      
Gross Amounts at Which Carried at Close of Period, Land 12,528      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 79,530      
Gross Amounts at Which Carried at Close of Period, Total 92,058      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (33,870)      
Old Hickory Mall, Jackson, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 15,527      
Initial Cost, Buildings and Improvements 29,413      
Costs Capitalized Subsequent to Acquisition 9,074      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 15,531      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 38,483      
Gross Amounts at Which Carried at Close of Period, Total 54,014      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (18,300)      
The Outlet Shoppes at Atlanta, Woodstock, GA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 77,808      
Initial Cost, Land 8,598      
Initial Cost, Buildings and Improvements 100,613      
Costs Capitalized Subsequent to Acquisition (36,505)      
Sales of Outparcel Land (740)      
Gross Amounts at Which Carried at Close of Period, Land 7,858      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 64,108      
Gross Amounts at Which Carried at Close of Period, Total 71,966      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (20,181)      
The Outlet Shoppes at El Paso, El Paso, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 74,823      
Initial Cost, Land 7,345      
Initial Cost, Buildings and Improvements 98,602      
Costs Capitalized Subsequent to Acquisition 11,013      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 7,569      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 109,391      
Gross Amounts at Which Carried at Close of Period, Total 116,960      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (23,623)      
The Outlet Shoppes at Gettysburg, Gettysburg, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 37,762      
Initial Cost, Land 20,779      
Initial Cost, Buildings and Improvements 22,180      
Costs Capitalized Subsequent to Acquisition 2,706      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 20,778      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 24,887      
Gross Amounts at Which Carried at Close of Period, Total 45,665      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (6,256)      
The Outlet Shoppes at Laredo, Laredo, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 54,550      
Initial Cost, Land 11,000      
Initial Cost, Buildings and Improvements 97,711      
Costs Capitalized Subsequent to Acquisition 2,101      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,000      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 99,812      
Gross Amounts at Which Carried at Close of Period, Total 110,812      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (7,869)      
The Outlet Shoppes of the Bluegrass, Simpsonville, KY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 81,221      
Initial Cost, Land 3,193      
Initial Cost, Buildings and Improvements 72,962      
Costs Capitalized Subsequent to Acquisition 5,010      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,193      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 77,972      
Gross Amounts at Which Carried at Close of Period, Total 81,165      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (18,665)      
Park Plaza Mall, Little Rock, AR        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 81,287      
Initial Cost, Land 6,297      
Initial Cost, Buildings and Improvements 81,638      
Costs Capitalized Subsequent to Acquisition 47,358      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 6,304      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 128,989      
Gross Amounts at Which Carried at Close of Period, Total 135,293      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (55,540)      
Parkdale Mall, Beaumont, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 78,544      
Initial Cost, Land 23,850      
Initial Cost, Buildings and Improvements 47,390      
Costs Capitalized Subsequent to Acquisition 61,823      
Sales of Outparcel Land (307)      
Gross Amounts at Which Carried at Close of Period, Land 25,381      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 107,375      
Gross Amounts at Which Carried at Close of Period, Total 132,756      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (48,165)      
Parkway Place, Huntsville, AL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 34,486      
Initial Cost, Land 6,364      
Initial Cost, Buildings and Improvements 67,067      
Costs Capitalized Subsequent to Acquisition 7,722      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 6,364      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 74,789      
Gross Amounts at Which Carried at Close of Period, Total 81,153      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (20,838)      
Pearland Town Center, Pearland, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 16,300      
Initial Cost, Buildings and Improvements 108,615      
Costs Capitalized Subsequent to Acquisition 20,417      
Sales of Outparcel Land (857)      
Gross Amounts at Which Carried at Close of Period, Land 15,480      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 128,995      
Gross Amounts at Which Carried at Close of Period, Total 144,475      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (46,837)      
Post Oak Mall, College Station, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 3,936      
Initial Cost, Buildings and Improvements 48,948      
Costs Capitalized Subsequent to Acquisition 17,118      
Sales of Outparcel Land (327)      
Gross Amounts at Which Carried at Close of Period, Land 3,852      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 65,823      
Gross Amounts at Which Carried at Close of Period, Total 69,675      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (39,171)      
Richland Mall, Waco, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 9,874      
Initial Cost, Buildings and Improvements 34,793      
Costs Capitalized Subsequent to Acquisition 23,788      
Sales of Outparcel Land (1,225)      
Gross Amounts at Which Carried at Close of Period, Land 8,662      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 58,568      
Gross Amounts at Which Carried at Close of Period, Total 67,230      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (23,733)      
South County Center, St. Louis, MO        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 15,754      
Initial Cost, Buildings and Improvements 159,249      
Costs Capitalized Subsequent to Acquisition 16,181      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 15,790      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 175,394      
Gross Amounts at Which Carried at Close of Period, Total 191,184      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (57,799)      
Southaven Towne Center, Southaven, MS        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 8,255      
Initial Cost, Buildings and Improvements 29,380      
Costs Capitalized Subsequent to Acquisition 9,496      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,384      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 35,747      
Gross Amounts at Which Carried at Close of Period, Total 47,131      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (14,162)      
Southpark Mall, Colonial Heights, VA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 59,766      
Initial Cost, Land 9,501      
Initial Cost, Buildings and Improvements 73,262      
Costs Capitalized Subsequent to Acquisition 37,875      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,282      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 109,356      
Gross Amounts at Which Carried at Close of Period, Total 120,638      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (47,209)      
St. Clair Square, Fairview Heights, IL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 11,027      
Initial Cost, Buildings and Improvements 75,620      
Costs Capitalized Subsequent to Acquisition 38,853      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,027      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 114,473      
Gross Amounts at Which Carried at Close of Period, Total 125,500      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (59,248)      
Stroud Mall, Stroudsburg, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 14,711      
Initial Cost, Buildings and Improvements 23,936      
Costs Capitalized Subsequent to Acquisition 23,187      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 14,711      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 47,123      
Gross Amounts at Which Carried at Close of Period, Total 61,834      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (20,956)      
Sunrise Mall, Brownsville, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 11,156      
Initial Cost, Buildings and Improvements 59,047      
Costs Capitalized Subsequent to Acquisition 16,298      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 11,156      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 75,345      
Gross Amounts at Which Carried at Close of Period, Total 86,501      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (29,067)      
Turtle Creek Mall, Hattiesburg, MS        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,345      
Initial Cost, Buildings and Improvements 26,418      
Costs Capitalized Subsequent to Acquisition 20,354      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,535      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 45,582      
Gross Amounts at Which Carried at Close of Period, Total 49,117      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (27,255)      
Valley View Mall, Roanoke, VA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 53,372      
Initial Cost, Land 15,985      
Initial Cost, Buildings and Improvements 77,771      
Costs Capitalized Subsequent to Acquisition 24,517      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 15,999      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 102,274      
Gross Amounts at Which Carried at Close of Period, Total 118,273      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (42,013)      
Volusia Mall, Daytona Beach, FL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 41,332      
Initial Cost, Land 2,526      
Initial Cost, Buildings and Improvements 120,242      
Costs Capitalized Subsequent to Acquisition 37,405      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 8,945      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 151,228      
Gross Amounts at Which Carried at Close of Period, Total 160,173      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (55,382)      
West Towne Mall, Madison, WI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 8,912      
Initial Cost, Buildings and Improvements 83,084      
Costs Capitalized Subsequent to Acquisition 46,050      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 8,912      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 129,134      
Gross Amounts at Which Carried at Close of Period, Total 138,046      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (57,121)      
WestGate Mall, Spartanburg, SC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 33,910      
Initial Cost, Land 2,149      
Initial Cost, Buildings and Improvements 23,257      
Costs Capitalized Subsequent to Acquisition 52,373      
Sales of Outparcel Land (432)      
Gross Amounts at Which Carried at Close of Period, Land 1,742      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 75,605      
Gross Amounts at Which Carried at Close of Period, Total 77,347      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (42,592)      
Westmoreland Mall, Greensburg, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 4,621      
Initial Cost, Buildings and Improvements 84,215      
Costs Capitalized Subsequent to Acquisition 30,499      
Sales of Outparcel Land (1,240)      
Gross Amounts at Which Carried at Close of Period, Land 3,381      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 114,714      
Gross Amounts at Which Carried at Close of Period, Total 118,095      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (47,718)      
York Galleria, York, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 5,757      
Initial Cost, Buildings and Improvements 63,316      
Costs Capitalized Subsequent to Acquisition 20,618      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 5,757      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 83,934      
Gross Amounts at Which Carried at Close of Period, Total 89,691      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (38,296)      
840 Greenbrier Circle, Chesapeake, VA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,096      
Initial Cost, Buildings and Improvements 3,091      
Costs Capitalized Subsequent to Acquisition 1,276      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,096      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 4,367      
Gross Amounts at Which Carried at Close of Period, Total 6,463      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (1,518)      
850 Greenbrier Circle, Chesapeake, VA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 3,154      
Initial Cost, Buildings and Improvements 6,881      
Costs Capitalized Subsequent to Acquisition 1,652      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,154      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 8,533      
Gross Amounts at Which Carried at Close of Period, Total 11,687      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (2,331)      
Annex at Monroeville, Pittsburgh, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 29,496      
Costs Capitalized Subsequent to Acquisition 721      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 30,217      
Gross Amounts at Which Carried at Close of Period, Total 30,217      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (10,535)      
CBL Center, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 17,780      
Initial Cost, Land 1,332      
Initial Cost, Buildings and Improvements 24,675      
Costs Capitalized Subsequent to Acquisition 1,084      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 1,863      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 25,228      
Gross Amounts at Which Carried at Close of Period, Total 27,091      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (15,072)      
CBL Center II, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 22      
Initial Cost, Buildings and Improvements 13,648      
Costs Capitalized Subsequent to Acquisition 1,898      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 358      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 15,210      
Gross Amounts at Which Carried at Close of Period, Total 15,568      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (5,598)      
CoolSprings Crossing, Nashville, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,803      
Initial Cost, Buildings and Improvements 14,985      
Costs Capitalized Subsequent to Acquisition 5,935      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 3,554      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 20,169      
Gross Amounts at Which Carried at Close of Period, Total 23,723      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (13,836)      
Courtyard at Hickory Hollow, Nashville, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 3,314      
Initial Cost, Buildings and Improvements 2,771      
Costs Capitalized Subsequent to Acquisition 397      
Sales of Outparcel Land (231)      
Gross Amounts at Which Carried at Close of Period, Land 1,500      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 4,751      
Gross Amounts at Which Carried at Close of Period, Total 6,251      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (1,298)      
The Forum at Grandview, Madison, MS        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 9,234      
Initial Cost, Buildings and Improvements 17,285      
Costs Capitalized Subsequent to Acquisition 21,475      
Sales of Outparcel Land (931)      
Gross Amounts at Which Carried at Close of Period, Land 8,405      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 38,658      
Gross Amounts at Which Carried at Close of Period, Total 47,063      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (6,626)      
Frontier Square, Cheyenne, WY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 346      
Initial Cost, Buildings and Improvements 684      
Costs Capitalized Subsequent to Acquisition 434      
Sales of Outparcel Land (86)      
Gross Amounts at Which Carried at Close of Period, Land 260      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 1,118      
Gross Amounts at Which Carried at Close of Period, Total 1,378      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (776)      
Gunbarrel Pointe, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 4,170      
Initial Cost, Buildings and Improvements 10,874      
Costs Capitalized Subsequent to Acquisition 3,787      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 4,170      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 14,661      
Gross Amounts at Which Carried at Close of Period, Total 18,831      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (6,848)      
Hamilton Corner, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 630      
Initial Cost, Buildings and Improvements 5,532      
Costs Capitalized Subsequent to Acquisition 8,319      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 734      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 13,747      
Gross Amounts at Which Carried at Close of Period, Total 14,481      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (7,804)      
Hamilton Crossing, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 8,821      
Initial Cost, Land 4,014      
Initial Cost, Buildings and Improvements 5,906      
Costs Capitalized Subsequent to Acquisition 7,010      
Sales of Outparcel Land (1,370)      
Gross Amounts at Which Carried at Close of Period, Land 2,644      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 12,916      
Gross Amounts at Which Carried at Close of Period, Total 15,560      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (7,643)      
Harford Annex, Bel Air, MD        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,854      
Initial Cost, Buildings and Improvements 9,718      
Costs Capitalized Subsequent to Acquisition 1,357      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,854      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 11,075      
Gross Amounts at Which Carried at Close of Period, Total 13,929      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (4,348)      
The Landing at Arbor Place, Atlanta (Douglasville), GA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 7,238      
Initial Cost, Buildings and Improvements 14,330      
Costs Capitalized Subsequent to Acquisition 3,583      
Sales of Outparcel Land (2,242)      
Gross Amounts at Which Carried at Close of Period, Land 4,996      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 17,913      
Gross Amounts at Which Carried at Close of Period, Total 22,909      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (10,573)      
Layton Hills Convenience Center, Layton, UT        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 8      
Costs Capitalized Subsequent to Acquisition 5,892      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,795      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 3,105      
Gross Amounts at Which Carried at Close of Period, Total 5,900      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (1,728)      
Layton Hills Plaza, Layton, UT        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 1,001      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 673      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 330      
Gross Amounts at Which Carried at Close of Period, Total 1,003      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (234)      
Parkdale Crossing, Beaumont, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,994      
Initial Cost, Buildings and Improvements 7,408      
Costs Capitalized Subsequent to Acquisition 2,124      
Sales of Outparcel Land (355)      
Gross Amounts at Which Carried at Close of Period, Land 2,639      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 9,532      
Gross Amounts at Which Carried at Close of Period, Total 12,171      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (3,906)      
Pearland Hotel, Pearland, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 16,149      
Costs Capitalized Subsequent to Acquisition 2,301      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 18,450      
Gross Amounts at Which Carried at Close of Period, Total 18,450      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (5,804)      
Pearland Office, Pearland, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 7,849      
Costs Capitalized Subsequent to Acquisition 2,751      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 10,600      
Gross Amounts at Which Carried at Close of Period, Total 10,600      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (3,727)      
Pearland Residential Mgmt, Pearland, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 9,666      
Costs Capitalized Subsequent to Acquisition 9      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 9,675      
Gross Amounts at Which Carried at Close of Period, Total 9,675      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (2,798)      
The Plaza at Fayette, Lexington, KY        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 9,531      
Initial Cost, Buildings and Improvements 27,646      
Costs Capitalized Subsequent to Acquisition 1,180      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 9,531      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 28,826      
Gross Amounts at Which Carried at Close of Period, Total 38,357      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (9,688)      
The Promenade, D'Iberville, MS        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 16,278      
Initial Cost, Buildings and Improvements 48,806      
Costs Capitalized Subsequent to Acquisition 25,474      
Sales of Outparcel Land (706)      
Gross Amounts at Which Carried at Close of Period, Land 17,953      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 71,899      
Gross Amounts at Which Carried at Close of Period, Total 89,852      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (22,129)      
The Shoppes At Hamilton Place, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 4,894      
Initial Cost, Buildings and Improvements 11,700      
Costs Capitalized Subsequent to Acquisition 785      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,811      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 14,568      
Gross Amounts at Which Carried at Close of Period, Total 17,379      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (5,188)      
The Shoppes at St. Clair Square, Fairview Heights, IL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 8,250      
Initial Cost, Buildings and Improvements 23,623      
Costs Capitalized Subsequent to Acquisition 552      
Sales of Outparcel Land (5,044)      
Gross Amounts at Which Carried at Close of Period, Land 3,206      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 24,175      
Gross Amounts at Which Carried at Close of Period, Total 27,381      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (10,613)      
Sunrise Commons, Brownsville, TX        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 1,013      
Initial Cost, Buildings and Improvements 7,525      
Costs Capitalized Subsequent to Acquisition 2,520      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 1,013      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 10,045      
Gross Amounts at Which Carried at Close of Period, Total 11,058      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (4,239)      
The Terrace, Chattanooga, TN        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 12,334      
Initial Cost, Land 4,166      
Initial Cost, Buildings and Improvements 9,929      
Costs Capitalized Subsequent to Acquisition 7,991      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 6,536      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 15,550      
Gross Amounts at Which Carried at Close of Period, Total 22,086      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (6,915)      
West Towne Crossing, Madison, WI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 1,784      
Initial Cost, Buildings and Improvements 2,955      
Costs Capitalized Subsequent to Acquisition 12,159      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,759      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 14,139      
Gross Amounts at Which Carried at Close of Period, Total 16,898      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (4,994)      
WestGate Crossing, Spartanburg, SC        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 1,082      
Initial Cost, Buildings and Improvements 3,422      
Costs Capitalized Subsequent to Acquisition 8,274      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 1,082      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 11,696      
Gross Amounts at Which Carried at Close of Period, Total 12,778      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (5,621)      
Westmoreland Crossing, Greensburg, PA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,898      
Initial Cost, Buildings and Improvements 21,167      
Costs Capitalized Subsequent to Acquisition 9,525      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 2,898      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 30,692      
Gross Amounts at Which Carried at Close of Period, Total 33,590      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (12,442)      
Chesterfield OP, St. Louis, MO        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 524      
Initial Cost, Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition (524)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 0      
Gross Amounts at Which Carried at Close of Period, Total 0      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Gulf Coast Dick's Sporting Goods, Ft. Myers, FL        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 347      
Initial Cost, Buildings and Improvements 6,835      
Costs Capitalized Subsequent to Acquisition (7,110)      
Sales of Outparcel Land (72)      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 0      
Gross Amounts at Which Carried at Close of Period, Total 0      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Janesville Mall, Janesville, WI        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 8,074      
Initial Cost, Buildings and Improvements 26,009      
Costs Capitalized Subsequent to Acquisition (34,083)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 0      
Gross Amounts at Which Carried at Close of Period, Total 0      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Parkway Plaza, Fort Oglethorpe, GA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,675      
Initial Cost, Buildings and Improvements 13,435      
Costs Capitalized Subsequent to Acquisition (16,110)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 0      
Gross Amounts at Which Carried at Close of Period, Total 0      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Statesboro Crossing, Statesboro, GA        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 2,855      
Initial Cost, Buildings and Improvements 17,805      
Costs Capitalized Subsequent to Acquisition (20,660)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 0      
Gross Amounts at Which Carried at Close of Period, Total 0      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation 0      
Other        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 19,248      
Initial Cost, Buildings and Improvements 4,002      
Costs Capitalized Subsequent to Acquisition (640)      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 19,715      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 2,895      
Gross Amounts at Which Carried at Close of Period, Total 22,610      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation (1,255)      
Developments in progress consisting of construction and Development Properties        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 0      
Initial Cost, Land 0      
Initial Cost, Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 38,807      
Sales of Outparcel Land 0      
Gross Amounts at Which Carried at Close of Period, Land 0      
Gross Amounts at Which Carried at Close of Period, Buildings and Improvements 38,807      
Gross Amounts at Which Carried at Close of Period, Total 38,807      
Gross Amounts at Which Carried at Close of Period, Accumulated Depreciation $ 0