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Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Real Estate And Accumulated Depreciation [Line Items]        
Original Land $ 132,552      
Original Buildings and Improvements 1,898,341      
Costs Capitalized Subsequent to Acquisition 685,035      
Land and Improvements 130,206      
Building and Improvements 2,515,039      
Land Held for Development 31,762      
Development and Construction in Progress 38,921      
Total 2,715,929 $ 2,679,737 $ 2,643,065 $ 2,501,844
Accumulated Depreciation 677,025 $ 616,175 $ 558,657 $ 492,582
Book Value of Mortgaged Properties 1,128,906      
Secure Services Facility [Member] | DEERFIELD BEACH, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 4,085      
Original Buildings and Improvements 15,441      
Costs Capitalized Subsequent to Acquisition 19,261      
Land and Improvements 4,297      
Building and Improvements 34,392      
Land Held for Development 0      
Development and Construction in Progress 98      
Total 38,787      
Accumulated Depreciation 11,008      
Book Value of Mortgaged Properties 27,779      
Secure Services Facility [Member] | FOLKSTON, GA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,229      
Original Buildings and Improvements 55,961      
Costs Capitalized Subsequent to Acquisition 14,726      
Land and Improvements 1,966      
Building and Improvements 69,707      
Land Held for Development 243      
Development and Construction in Progress 0      
Total 71,916      
Accumulated Depreciation 17,506      
Book Value of Mortgaged Properties 54,410      
Secure Services Facility [Member] | Folkston, GA2 [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 291      
Original Buildings and Improvements 30,399      
Costs Capitalized Subsequent to Acquisition 12,684      
Land and Improvements 291      
Building and Improvements 43,038      
Land Held for Development 0      
Development and Construction in Progress 45      
Total 43,374      
Accumulated Depreciation 8,404      
Book Value of Mortgaged Properties 34,970      
Secure Services Facility [Member] | JENA, LA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 856      
Original Buildings and Improvements 51,623      
Costs Capitalized Subsequent to Acquisition 6,978      
Land and Improvements 1,235      
Building and Improvements 57,647      
Land Held for Development 514      
Development and Construction in Progress 61      
Total 59,457      
Accumulated Depreciation 18,446      
Book Value of Mortgaged Properties 41,011      
Secure Services Facility [Member] | Alexandria, LA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 17,283      
Costs Capitalized Subsequent to Acquisition 99      
Land and Improvements 0      
Building and Improvements 17,379      
Land Held for Development 0      
Development and Construction in Progress 3      
Total 17,382      
Accumulated Depreciation 2,271      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | PHILIPSBURG, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,107      
Original Buildings and Improvements 65,160      
Costs Capitalized Subsequent to Acquisition 9,261      
Land and Improvements 1,738      
Building and Improvements 73,663      
Land Held for Development 87      
Development and Construction in Progress 40      
Total 75,528      
Accumulated Depreciation 18,534      
Book Value of Mortgaged Properties 56,994      
Secure Services Facility [Member] | BALDWIN, MI [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 66      
Original Buildings and Improvements 36,727      
Costs Capitalized Subsequent to Acquisition 53,644      
Land and Improvements 1,727      
Building and Improvements 88,710      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 90,437      
Accumulated Depreciation 17,867      
Book Value of Mortgaged Properties 72,570      
Secure Services Facility [Member] | JAMAICA, NY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,237      
Original Buildings and Improvements 19,847      
Costs Capitalized Subsequent to Acquisition 5,526      
Land and Improvements 2,237      
Building and Improvements 24,022      
Land Held for Development 0      
Development and Construction in Progress 1,351      
Total 27,610      
Accumulated Depreciation 10,474      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | MILLEDGEVILLE, GA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 72,932      
Costs Capitalized Subsequent to Acquisition 1,246      
Land and Improvements 667      
Building and Improvements 73,466      
Land Held for Development 0      
Development and Construction in Progress 45      
Total 74,178      
Accumulated Depreciation 17,891      
Book Value of Mortgaged Properties 56,287      
Secure Services Facility [Member] | WINTON, NC [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 875      
Original Buildings and Improvements 60,328      
Costs Capitalized Subsequent to Acquisition 6,623      
Land and Improvements 1,256      
Building and Improvements 66,421      
Land Held for Development 149      
Development and Construction in Progress 0      
Total 67,826      
Accumulated Depreciation 26,661      
Book Value of Mortgaged Properties 41,165      
Secure Services Facility [Member] | LOVEJOY, GA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 8,163      
Costs Capitalized Subsequent to Acquisition 10,973      
Land and Improvements 15      
Building and Improvements 19,048      
Land Held for Development 0      
Development and Construction in Progress 73      
Total 19,136      
Accumulated Depreciation 11,944      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | BIG SPRING, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 480      
Original Buildings and Improvements 82,180      
Costs Capitalized Subsequent to Acquisition 32,458      
Land and Improvements 2,405      
Building and Improvements 112,708      
Land Held for Development 0      
Development and Construction in Progress 5      
Total 115,118      
Accumulated Depreciation 38,158      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | HINTON, OK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 463      
Original Buildings and Improvements 76,580      
Costs Capitalized Subsequent to Acquisition 19,505      
Land and Improvements 2,499      
Building and Improvements 90,349      
Land Held for Development 0      
Development and Construction in Progress 3,700      
Total 96,548      
Accumulated Depreciation 22,193      
Book Value of Mortgaged Properties 74,355      
Secure Services Facility [Member] | CONROE, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 470      
Original Buildings and Improvements 64,813      
Costs Capitalized Subsequent to Acquisition 13,715      
Land and Improvements 604      
Building and Improvements 78,394      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 78,998      
Accumulated Depreciation 13,119      
Book Value of Mortgaged Properties 65,879      
Secure Services Facility [Member] | KARNES CITY, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 937      
Original Buildings and Improvements 24,825      
Costs Capitalized Subsequent to Acquisition 15,714      
Land and Improvements 912      
Building and Improvements 40,378      
Land Held for Development 176      
Development and Construction in Progress 10      
Total 41,476      
Accumulated Depreciation 9,018      
Book Value of Mortgaged Properties 32,458      
Secure Services Facility [Member] | Karnes City, TX2 [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 29,052      
Costs Capitalized Subsequent to Acquisition 31,211      
Land and Improvements 803      
Building and Improvements 59,460      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 60,263      
Accumulated Depreciation 9,524      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | LAWTON, OK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,012      
Original Buildings and Improvements 96,637      
Costs Capitalized Subsequent to Acquisition 18,490      
Land and Improvements 1,501      
Building and Improvements 111,281      
Land Held for Development 0      
Development and Construction in Progress 3,357      
Total 116,139      
Accumulated Depreciation 30,759      
Book Value of Mortgaged Properties 85,380      
Secure Services Facility [Member] | LAREDO, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 8,365      
Original Buildings and Improvements 81,178      
Costs Capitalized Subsequent to Acquisition 1,950      
Land and Improvements 6,266      
Building and Improvements 83,128      
Land Held for Development 2,099      
Development and Construction in Progress 0      
Total 91,493      
Accumulated Depreciation 20,878      
Book Value of Mortgaged Properties 70,615      
Secure Services Facility [Member] | PEARSALL, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 437      
Original Buildings and Improvements 31,405      
Costs Capitalized Subsequent to Acquisition 7,070      
Land and Improvements 437      
Building and Improvements 37,603      
Land Held for Development 0      
Development and Construction in Progress 872      
Total 38,912      
Accumulated Depreciation 12,318      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | DEL RIO, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 21      
Original Buildings and Improvements 56,009      
Costs Capitalized Subsequent to Acquisition 1,322      
Land and Improvements 16      
Building and Improvements 52,678      
Land Held for Development 5      
Development and Construction in Progress 4,653      
Total 57,352      
Accumulated Depreciation 17,695      
Book Value of Mortgaged Properties 39,657      
Secure Services Facility [Member] | ADELANTO, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 8,005      
Original Buildings and Improvements 113,255      
Costs Capitalized Subsequent to Acquisition 45,120      
Land and Improvements 10,564      
Building and Improvements 154,122      
Land Held for Development 0      
Development and Construction in Progress 1,694      
Total 166,380      
Accumulated Depreciation 26,925      
Book Value of Mortgaged Properties 139,455      
Secure Services Facility [Member] | AURORA, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 4,590      
Original Buildings and Improvements 15,200      
Costs Capitalized Subsequent to Acquisition 79,745      
Land and Improvements 4,669      
Building and Improvements 92,989      
Land Held for Development 1,310      
Development and Construction in Progress 567      
Total 99,535      
Accumulated Depreciation 22,136      
Book Value of Mortgaged Properties 77,399      
Secure Services Facility [Member] | MC FARLAND, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,055      
Original Buildings and Improvements 28,133      
Costs Capitalized Subsequent to Acquisition 5,774      
Land and Improvements 906      
Building and Improvements 30,980      
Land Held for Development 211      
Development and Construction in Progress 2,865      
Total 34,962      
Accumulated Depreciation 10,599      
Book Value of Mortgaged Properties 24,363      
Secure Services Facility [Member] | Desert View Annex        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,245      
Original Buildings and Improvements 27,943      
Costs Capitalized Subsequent to Acquisition 8,317      
Land and Improvements 1,245      
Building and Improvements 32,454      
Land Held for Development 0      
Development and Construction in Progress 3,806      
Total 37,505      
Accumulated Depreciation 12,251      
Book Value of Mortgaged Properties 25,254      
Secure Services Facility [Member] | Golden State Annex        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,264      
Original Buildings and Improvements 27,924      
Costs Capitalized Subsequent to Acquisition 9,479      
Land and Improvements 1,072      
Building and Improvements 30,436      
Land Held for Development 253      
Development and Construction in Progress 6,906      
Total 38,667      
Accumulated Depreciation 10,185      
Book Value of Mortgaged Properties 28,482      
Secure Services Facility [Member] | SANTA ROSA, NM [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 181      
Original Buildings and Improvements 29,732      
Costs Capitalized Subsequent to Acquisition 2,172      
Land and Improvements 832      
Building and Improvements 31,099      
Land Held for Development 154      
Development and Construction in Progress 0      
Total 32,085      
Accumulated Depreciation 13,489      
Book Value of Mortgaged Properties 18,596      
Secure Services Facility [Member] | HOBBS, NM [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 347      
Original Buildings and Improvements 67,933      
Costs Capitalized Subsequent to Acquisition 6,804      
Land and Improvements 744      
Building and Improvements 71,033      
Land Held for Development 347      
Development and Construction in Progress 2,960      
Total 75,084      
Accumulated Depreciation 21,758      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | McFarland Female CCF [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 914      
Original Buildings and Improvements 9,019      
Costs Capitalized Subsequent to Acquisition 9,063      
Land and Improvements 2,036      
Building and Improvements 16,765      
Land Held for Development 183      
Development and Construction in Progress 12      
Total 18,996      
Accumulated Depreciation 6,845      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | BAKERSFIELD, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,237      
Original Buildings and Improvements 13,714      
Costs Capitalized Subsequent to Acquisition 15,769      
Land and Improvements 2,237      
Building and Improvements 26,114      
Land Held for Development 3,181      
Development and Construction in Progress 188      
Total 31,720      
Accumulated Depreciation 5,958      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | TACOMA, WA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 3,916      
Original Buildings and Improvements 39,000      
Costs Capitalized Subsequent to Acquisition 52,657      
Land and Improvements 6,546      
Building and Improvements 88,792      
Land Held for Development 0      
Development and Construction in Progress 235      
Total 95,573      
Accumulated Depreciation 25,616      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | SAN DIEGO, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 28,071      
Costs Capitalized Subsequent to Acquisition 1,417      
Land and Improvements 0      
Building and Improvements 29,425      
Land Held for Development 0      
Development and Construction in Progress 63      
Total 29,488      
Accumulated Depreciation 29,398      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Falfurrias, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 410      
Original Buildings and Improvements 18,940      
Costs Capitalized Subsequent to Acquisition 1,514      
Land and Improvements 470      
Building and Improvements 20,394      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20,864      
Accumulated Depreciation 3,197      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | LaVilla, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 460      
Original Buildings and Improvements 28,010      
Costs Capitalized Subsequent to Acquisition 4,589      
Land and Improvements 523      
Building and Improvements 32,536      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 33,059      
Accumulated Depreciation 4,402      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Uniontown, AL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 400      
Original Buildings and Improvements 12,880      
Costs Capitalized Subsequent to Acquisition 401      
Land and Improvements 400      
Building and Improvements 13,281      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 13,681      
Accumulated Depreciation 2,145      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Pine Prairie, LA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 260      
Original Buildings and Improvements 11,910      
Costs Capitalized Subsequent to Acquisition 7,401      
Land and Improvements 1,916      
Building and Improvements 17,172      
Land Held for Development 477      
Development and Construction in Progress 6      
Total 19,571      
Accumulated Depreciation 3,467      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Basile, LA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 290      
Original Buildings and Improvements 13,040      
Costs Capitalized Subsequent to Acquisition 19,907      
Land and Improvements 290      
Building and Improvements 32,947      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 33,237      
Accumulated Depreciation 4,134      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Robstown, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,330      
Original Buildings and Improvements 26,820      
Costs Capitalized Subsequent to Acquisition 1,171      
Land and Improvements 1,451      
Building and Improvements 27,870      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 29,321      
Accumulated Depreciation 4,565      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Maverick, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 296      
Original Buildings and Improvements 15,437      
Costs Capitalized Subsequent to Acquisition 7,961      
Land and Improvements 299      
Building and Improvements 23,395      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 23,694      
Accumulated Depreciation 1,880      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Montgomery ICE Processing Center        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,012      
Original Buildings and Improvements 112,192      
Costs Capitalized Subsequent to Acquisition 703      
Land and Improvements 2,016      
Building and Improvements 112,891      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 114,907      
Accumulated Depreciation 5,491      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | LAWRENCEVILLE, VA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 916      
Land and Improvements 0      
Building and Improvements 916      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 916      
Accumulated Depreciation 889      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | FLORENCE, AZ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 320      
Original Buildings and Improvements 9,317      
Costs Capitalized Subsequent to Acquisition 1,225      
Land and Improvements 320      
Building and Improvements 10,542      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,862      
Accumulated Depreciation 9,677      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | PHOENIX, AZ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7,919      
Costs Capitalized Subsequent to Acquisition 504      
Land and Improvements 0      
Building and Improvements 8,423      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8,423      
Accumulated Depreciation 7,510      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Central Arizona Correctional Facility [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 396      
Costs Capitalized Subsequent to Acquisition 2,000      
Land and Improvements 0      
Building and Improvements 2,396      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,396      
Accumulated Depreciation 2,361      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Kingman, AZ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 458      
Land and Improvements 0      
Building and Improvements 458      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 458      
Accumulated Depreciation 280      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | NEW CASTLE, IN [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 23,389      
Land and Improvements 0      
Building and Improvements 23,286      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 23,286      
Accumulated Depreciation 12,749      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | PLAINFIELD, IN [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 10      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10      
Accumulated Depreciation 10      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | SOUTH BAY, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 2,417      
Land and Improvements 0      
Building and Improvements 2,417      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,417      
Accumulated Depreciation 2,417      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Reeves County Detention Complex R1/R2 [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 1,203      
Land and Improvements 0      
Building and Improvements 1,203      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,203      
Accumulated Depreciation 1,203      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Reeves County Detention Complex R3 [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 4,238      
Land and Improvements 0      
Building and Improvements 4,238      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,238      
Accumulated Depreciation 4,235      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Milton, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 36      
Land and Improvements 0      
Building and Improvements 36      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 36      
Accumulated Depreciation 36      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Panama City, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 13      
Land and Improvements 0      
Building and Improvements 13      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 13      
Accumulated Depreciation 13      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Moore Haven, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 49      
Land and Improvements 0      
Building and Improvements 49      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 49      
Accumulated Depreciation 49      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Jackson, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 542      
Land and Improvements 0      
Building and Improvements 542      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 542      
Accumulated Depreciation 389      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Glen Mills, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 34      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 44      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 44      
Accumulated Depreciation 28      
Book Value of Mortgaged Properties 0      
Secure Services Facility [Member] | Bracketville, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 223      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 233      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 233      
Accumulated Depreciation 123      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | BEAUMONT, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 105      
Original Buildings and Improvements 560      
Costs Capitalized Subsequent to Acquisition 764      
Land and Improvements 132      
Building and Improvements 1,297      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,429      
Accumulated Depreciation 702      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | BRONX, NY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 154      
Costs Capitalized Subsequent to Acquisition 7,203      
Land and Improvements 0      
Building and Improvements 3,767      
Land Held for Development 0      
Development and Construction in Progress 3,590      
Total 7,357      
Accumulated Depreciation 3,390      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | ANCHORAGE, AK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 235      
Original Buildings and Improvements 3,225      
Costs Capitalized Subsequent to Acquisition 4,766      
Land and Improvements 235      
Building and Improvements 7,991      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8,226      
Accumulated Depreciation 3,017      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | NEWARK, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 3,759      
Original Buildings and Improvements 22,502      
Costs Capitalized Subsequent to Acquisition 14,126      
Land and Improvements 3,873      
Building and Improvements 36,512      
Land Held for Development 0      
Development and Construction in Progress 2      
Total 40,387      
Accumulated Depreciation 12,316      
Community Based Services Facility [Member] | EL MONTE, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 47      
Costs Capitalized Subsequent to Acquisition 155      
Land and Improvements 0      
Building and Improvements 202      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 202      
Accumulated Depreciation 139      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | LEAVENWORTH, KS [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 24      
Costs Capitalized Subsequent to Acquisition 3,446      
Land and Improvements 247      
Building and Improvements 3,194      
Land Held for Development 0      
Development and Construction in Progress 29      
Total 3,470      
Accumulated Depreciation 195      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | LAS VEGAS, NV [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 520      
Original Buildings and Improvements 1,580      
Costs Capitalized Subsequent to Acquisition 460      
Land and Improvements 520      
Building and Improvements 2,040      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,560      
Accumulated Depreciation 717      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | HOUSTON, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 3,210      
Original Buildings and Improvements 710      
Costs Capitalized Subsequent to Acquisition 610      
Land and Improvements 3,210      
Building and Improvements 1,320      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,530      
Accumulated Depreciation 627      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | LOS ANGELES, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 50      
Costs Capitalized Subsequent to Acquisition 2,584      
Land and Improvements 241      
Building and Improvements 2,393      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,634      
Accumulated Depreciation 656      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | AUSTIN, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 350      
Original Buildings and Improvements 510      
Costs Capitalized Subsequent to Acquisition 537      
Land and Improvements 350      
Building and Improvements 1,047      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,397      
Accumulated Depreciation 773      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | EDINBURG, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 694      
Original Buildings and Improvements 3,608      
Costs Capitalized Subsequent to Acquisition 244      
Land and Improvements 722      
Building and Improvements 3,824      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,546      
Accumulated Depreciation 662      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Midtown Center [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 130      
Original Buildings and Improvements 220      
Costs Capitalized Subsequent to Acquisition 153      
Land and Improvements 130      
Building and Improvements 373      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 503      
Accumulated Depreciation 204      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | FAIRBANKS, AK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 12      
Costs Capitalized Subsequent to Acquisition 288      
Land and Improvements 0      
Building and Improvements 300      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 300      
Accumulated Depreciation 297      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | OAKLAND, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 970      
Original Buildings and Improvements 250      
Costs Capitalized Subsequent to Acquisition 109      
Land and Improvements 970      
Building and Improvements 359      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,329      
Accumulated Depreciation 193      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Parkview Center [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 160      
Original Buildings and Improvements 1,480      
Costs Capitalized Subsequent to Acquisition 1,464      
Land and Improvements 160      
Building and Improvements 2,928      
Land Held for Development 0      
Development and Construction in Progress 16      
Total 3,104      
Accumulated Depreciation 1,096      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | BROWNSVILLE, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 487      
Original Buildings and Improvements 2,771      
Costs Capitalized Subsequent to Acquisition 527      
Land and Improvements 520      
Building and Improvements 3,265      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,785      
Accumulated Depreciation 727      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Southeast Texas Transitional Center [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 910      
Original Buildings and Improvements 3,210      
Costs Capitalized Subsequent to Acquisition 3,580      
Land and Improvements 1,052      
Building and Improvements 6,648      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 7,700      
Accumulated Depreciation 2,149      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | SALT LAKE CITY, UT [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 751      
Original Buildings and Improvements 1,505      
Costs Capitalized Subsequent to Acquisition 155      
Land and Improvements 751      
Building and Improvements 1,660      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,411      
Accumulated Depreciation 370      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | NOME, AK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 67      
Original Buildings and Improvements 732      
Costs Capitalized Subsequent to Acquisition 3,956      
Land and Improvements 67      
Building and Improvements 4,670      
Land Held for Development 0      
Development and Construction in Progress 18      
Total 4,755      
Accumulated Depreciation 595      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | SAN FRANCISCO, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 3,230      
Original Buildings and Improvements 900      
Costs Capitalized Subsequent to Acquisition 3,294      
Land and Improvements 3,230      
Building and Improvements 4,177      
Land Held for Development 0      
Development and Construction in Progress 17      
Total 7,424      
Accumulated Depreciation 1,586      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | BETHEL, AK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 20      
Original Buildings and Improvements 1,190      
Costs Capitalized Subsequent to Acquisition 1,577      
Land and Improvements 79      
Building and Improvements 2,708      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,787      
Accumulated Depreciation 1,783      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Columbiana, AL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 760      
Original Buildings and Improvements 17,118      
Costs Capitalized Subsequent to Acquisition 505      
Land and Improvements 760      
Building and Improvements 17,623      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 18,383      
Accumulated Depreciation 1,824      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Casper, WY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 600      
Original Buildings and Improvements 6,046      
Costs Capitalized Subsequent to Acquisition 1,057      
Land and Improvements 768      
Building and Improvements 6,935      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 7,703      
Accumulated Depreciation 1,160      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Toler House [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 88      
Costs Capitalized Subsequent to Acquisition 8      
Land and Improvements 0      
Building and Improvements 88      
Land Held for Development 0      
Development and Construction in Progress 8      
Total 96      
Accumulated Depreciation 43      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Logan Hall [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 6,888      
Costs Capitalized Subsequent to Acquisition (2,848)      
Land and Improvements 0      
Building and Improvements 4,040      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,040      
Accumulated Depreciation 3,304      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Long Beach, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 513      
Costs Capitalized Subsequent to Acquisition 154      
Land and Improvements 0      
Building and Improvements 667      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 667      
Accumulated Depreciation 653      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Littleton, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,100      
Original Buildings and Improvements 2,485      
Costs Capitalized Subsequent to Acquisition 110      
Land and Improvements 2,100      
Building and Improvements 2,595      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,695      
Accumulated Depreciation 507      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Colorado Springs, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 270      
Original Buildings and Improvements 18,853      
Costs Capitalized Subsequent to Acquisition 614      
Land and Improvements 270      
Building and Improvements 19,467      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 19,737      
Accumulated Depreciation 2,053      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Community Alternatives of El Paso County [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 560      
Original Buildings and Improvements 1,553      
Costs Capitalized Subsequent to Acquisition 377      
Land and Improvements 510      
Building and Improvements 1,924      
Land Held for Development 50      
Development and Construction in Progress 6      
Total 2,490      
Accumulated Depreciation 371      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Craig, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 126      
Original Buildings and Improvements 289      
Costs Capitalized Subsequent to Acquisition 47      
Land and Improvements 126      
Building and Improvements 336      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 462      
Accumulated Depreciation 120      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Trenton, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 380      
Original Buildings and Improvements 16,578      
Costs Capitalized Subsequent to Acquisition 516      
Land and Improvements 380      
Building and Improvements 17,094      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 17,474      
Accumulated Depreciation 2,334      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Kearney, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2,854      
Costs Capitalized Subsequent to Acquisition 206      
Land and Improvements 0      
Building and Improvements 3,060      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,060      
Accumulated Depreciation 2,277      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | The Harbor [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 93      
Costs Capitalized Subsequent to Acquisition 103      
Land and Improvements 0      
Building and Improvements 196      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 196      
Accumulated Depreciation 62      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Tully House [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,150      
Original Buildings and Improvements 5,313      
Costs Capitalized Subsequent to Acquisition 101      
Land and Improvements 1,150      
Building and Improvements 5,414      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 6,564      
Accumulated Depreciation 775      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Reading, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 77      
Original Buildings and Improvements 1,742      
Costs Capitalized Subsequent to Acquisition 118      
Land and Improvements 85      
Building and Improvements 1,852      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,937      
Accumulated Depreciation 360      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Arnold, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 30      
Original Buildings and Improvements 1,345      
Costs Capitalized Subsequent to Acquisition 71      
Land and Improvements 30      
Building and Improvements 1,416      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,446      
Accumulated Depreciation 281      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Chester, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 54      
Costs Capitalized Subsequent to Acquisition 3,802      
Land and Improvements 306      
Building and Improvements 3,474      
Land Held for Development 0      
Development and Construction in Progress 76      
Total 3,856      
Accumulated Depreciation 366      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Coleman Hall [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 182      
Original Buildings and Improvements 8,943      
Costs Capitalized Subsequent to Acquisition 801      
Land and Improvements 182      
Building and Improvements 9,744      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 9,926      
Accumulated Depreciation 1,402      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Philadelphia Residential Reentry Center [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 208      
Original Buildings and Improvements 10,103      
Costs Capitalized Subsequent to Acquisition 416      
Land and Improvements 214      
Building and Improvements 10,513      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,727      
Accumulated Depreciation 1,503      
Book Value of Mortgaged Properties 0      
Community Based Services Facility [Member] | Rapid City, SD [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 7      
Original Buildings and Improvements 2,719      
Costs Capitalized Subsequent to Acquisition 6      
Land and Improvements 7      
Building and Improvements 2,725      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,732      
Accumulated Depreciation 480      
Book Value of Mortgaged Properties 0      
Youth Facility | MORGANTOWN, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 4,220      
Original Buildings and Improvements 14,120      
Costs Capitalized Subsequent to Acquisition 1,795      
Land and Improvements 4,020      
Building and Improvements 16,115      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20,135      
Accumulated Depreciation 4,418      
Book Value of Mortgaged Properties 0      
Youth Facility | MARIENVILLE, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 990      
Original Buildings and Improvements 7,600      
Costs Capitalized Subsequent to Acquisition 1,814      
Land and Improvements 1,028      
Building and Improvements 9,376      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,404      
Accumulated Depreciation 3,401      
Book Value of Mortgaged Properties 0      
Youth Facility | SHELBY, OH [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 1,160      
Original Buildings and Improvements 2,900      
Costs Capitalized Subsequent to Acquisition 1,199      
Land and Improvements 1,207      
Building and Improvements 4,046      
Land Held for Development 0      
Development and Construction in Progress 6      
Total 5,259      
Accumulated Depreciation 1,566      
Book Value of Mortgaged Properties 0      
Youth Facility | SOUTH MOUNTAIN, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 36      
Costs Capitalized Subsequent to Acquisition 495      
Land and Improvements 0      
Building and Improvements 531      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 531      
Accumulated Depreciation 438      
Book Value of Mortgaged Properties 0      
Youth Facility | Hindsdale, IL        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,110      
Original Buildings and Improvements 1,190      
Costs Capitalized Subsequent to Acquisition 356      
Land and Improvements 2,110      
Building and Improvements 1,546      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,656      
Accumulated Depreciation 641      
Book Value of Mortgaged Properties 0      
Youth Facility | Leadership Development Program [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 25      
Costs Capitalized Subsequent to Acquisition 777      
Land and Improvements 0      
Building and Improvements 802      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 802      
Accumulated Depreciation 706      
Book Value of Mortgaged Properties 0      
Youth Facility | CANON CITY, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 2,850      
Original Buildings and Improvements 11,350      
Costs Capitalized Subsequent to Acquisition 864      
Land and Improvements 3,057      
Building and Improvements 12,007      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 15,064      
Accumulated Depreciation 3,656      
Book Value of Mortgaged Properties 0      
Youth Facility | CHICAGO, IL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 870      
Original Buildings and Improvements 6,310      
Costs Capitalized Subsequent to Acquisition 1,806      
Land and Improvements 898      
Building and Improvements 8,088      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8,986      
Accumulated Depreciation 3,242      
Book Value of Mortgaged Properties 0      
Youth Facility | WOODRIDGE, IL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 5,160      
Original Buildings and Improvements 4,330      
Costs Capitalized Subsequent to Acquisition 1,147      
Land and Improvements 5,304      
Building and Improvements 5,333      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,637      
Accumulated Depreciation 2,029      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | El Centro, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 11      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 11      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 11      
Accumulated Depreciation 11      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Ventura, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 19      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 19      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 19      
Accumulated Depreciation 19      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Richmond, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 35      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 35      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 35      
Accumulated Depreciation 35      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Neptune City, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 16      
Costs Capitalized Subsequent to Acquisition 35      
Land and Improvements 0      
Building and Improvements 51      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 51      
Accumulated Depreciation 51      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Sacramento, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 36      
Costs Capitalized Subsequent to Acquisition 59      
Land and Improvements 0      
Building and Improvements 95      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 95      
Accumulated Depreciation 55      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | PERTH AMBOY, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 19      
Costs Capitalized Subsequent to Acquisition 50      
Land and Improvements 0      
Building and Improvements 69      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 69      
Accumulated Depreciation 68      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Elizabeth, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 26      
Costs Capitalized Subsequent to Acquisition 84      
Land and Improvements 0      
Building and Improvements 110      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 110      
Accumulated Depreciation 86      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | ATLANTIC CITY, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 10      
Costs Capitalized Subsequent to Acquisition 22      
Land and Improvements 0      
Building and Improvements 32      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 32      
Accumulated Depreciation 32      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Santa Ana, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 72      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 72      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 72      
Accumulated Depreciation 72      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Lancaster, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 73      
Costs Capitalized Subsequent to Acquisition 1      
Land and Improvements 0      
Building and Improvements 74      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 74      
Accumulated Depreciation 74      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Williamsport, PA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 56      
Costs Capitalized Subsequent to Acquisition 94      
Land and Improvements 0      
Building and Improvements 150      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 150      
Accumulated Depreciation 131      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Vineland, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 163      
Costs Capitalized Subsequent to Acquisition 8      
Land and Improvements 0      
Building and Improvements 171      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 171      
Accumulated Depreciation 171      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Pamona, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 44      
Costs Capitalized Subsequent to Acquisition (20)      
Land and Improvements 0      
Building and Improvements 24      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 24      
Accumulated Depreciation 21      
Book Value of Mortgaged Properties 0      
Day Reporting Center [Member] | Eagle, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 8      
Land and Improvements 0      
Building and Improvements 8      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8      
Accumulated Depreciation 6      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | JAMAICA, NY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 125      
Costs Capitalized Subsequent to Acquisition 9      
Land and Improvements 0      
Building and Improvements 134      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 134      
Accumulated Depreciation 131      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | BAKERSFIELD, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 16      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 16      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 16      
Accumulated Depreciation 16      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | SAN DIEGO, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 14      
Costs Capitalized Subsequent to Acquisition 6      
Land and Improvements 0      
Building and Improvements 20      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20      
Accumulated Depreciation 7      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | PHOENIX, AZ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 79      
Costs Capitalized Subsequent to Acquisition (13)      
Land and Improvements 0      
Building and Improvements 66      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 66      
Accumulated Depreciation 65      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | BRONX, NY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 31      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 31      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 31      
Accumulated Depreciation 31      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | NEWARK, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 29      
Costs Capitalized Subsequent to Acquisition 7      
Land and Improvements 0      
Building and Improvements 36      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 36      
Accumulated Depreciation 36      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | LAS VEGAS, NV [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 32      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 32      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 32      
Accumulated Depreciation 20      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | HOUSTON, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 21      
Costs Capitalized Subsequent to Acquisition 19      
Land and Improvements 0      
Building and Improvements 40      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 40      
Accumulated Depreciation 40      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | LOS ANGELES, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 35      
Costs Capitalized Subsequent to Acquisition 45      
Land and Improvements 0      
Building and Improvements 80      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 80      
Accumulated Depreciation 80      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | CHICAGO, IL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 25      
Costs Capitalized Subsequent to Acquisition (14)      
Land and Improvements 0      
Building and Improvements 11      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 11      
Accumulated Depreciation 1      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Sacramento, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 28      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 28      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28      
Accumulated Depreciation 28      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Baltimore, MD [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 108      
Land and Improvements 0      
Building and Improvements 110      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 110      
Accumulated Depreciation 44      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | MIAMI, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 82      
Costs Capitalized Subsequent to Acquisition (74)      
Land and Improvements 0      
Building and Improvements 8      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8      
Accumulated Depreciation 1      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Delray Beach, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 26      
Costs Capitalized Subsequent to Acquisition 2      
Land and Improvements 0      
Building and Improvements 28      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28      
Accumulated Depreciation 15      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | ORLANDO, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 18      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 18      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 18      
Accumulated Depreciation 18      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | ATLANTA, GA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 268      
Costs Capitalized Subsequent to Acquisition (45)      
Land and Improvements 0      
Building and Improvements 223      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 223      
Accumulated Depreciation 215      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | NEW ORLEANS, LA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 54      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 54      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 54      
Accumulated Depreciation 54      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | FAIRFAX, VA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 20      
Costs Capitalized Subsequent to Acquisition (9)      
Land and Improvements 0      
Building and Improvements 11      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 11      
Accumulated Depreciation 3      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Charleston, SC [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 39      
Costs Capitalized Subsequent to Acquisition 1      
Land and Improvements 0      
Building and Improvements 40      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 40      
Accumulated Depreciation 39      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | DETROIT, MI [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 18      
Costs Capitalized Subsequent to Acquisition 174      
Land and Improvements 0      
Building and Improvements 192      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 192      
Accumulated Depreciation 74      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | CENTENNIAL, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 173      
Costs Capitalized Subsequent to Acquisition (166)      
Land and Improvements 0      
Building and Improvements 7      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 7      
Accumulated Depreciation 7      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | St. Louis, MO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 50      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 50      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 50      
Accumulated Depreciation 50      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Louisville, KY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 17      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 17      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 17      
Accumulated Depreciation 8      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Indianapolis, IN [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 35      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 35      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 35      
Accumulated Depreciation 35      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | MURRAY, UT [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7      
Costs Capitalized Subsequent to Acquisition 21      
Land and Improvements 0      
Building and Improvements 28      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28      
Accumulated Depreciation 25      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | TUKWILA, WA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 40      
Costs Capitalized Subsequent to Acquisition 15      
Land and Improvements 0      
Building and Improvements 55      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 55      
Accumulated Depreciation 55      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | NEW YORK, NY [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 10      
Costs Capitalized Subsequent to Acquisition 50      
Land and Improvements 0      
Building and Improvements 60      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 60      
Accumulated Depreciation 60      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | BURLINGTON, MA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 80      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 0      
Building and Improvements 85      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 85      
Accumulated Depreciation 85      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Hartford, CT [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 23      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 33      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 33      
Accumulated Depreciation 33      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Marlton, NJ [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 18      
Land and Improvements 0      
Building and Improvements 20      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20      
Accumulated Depreciation 15      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Richmond, VA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 52      
Costs Capitalized Subsequent to Acquisition 18      
Land and Improvements 0      
Building and Improvements 70      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 70      
Accumulated Depreciation 56      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Silver Springs, MD [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 345      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 345      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 345      
Accumulated Depreciation 334      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Fort Myers, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 76      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 76      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 76      
Accumulated Depreciation 49      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | SAN BERNADINO, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 42      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 42      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 42      
Accumulated Depreciation 42      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | DALLAS, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 17      
Costs Capitalized Subsequent to Acquisition 7      
Land and Improvements 0      
Building and Improvements 24      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 24      
Accumulated Depreciation 23      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | El Paso, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 36      
Land and Improvements 0      
Building and Improvements 38      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 38      
Accumulated Depreciation 29      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | SAN ANTONIO, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7      
Costs Capitalized Subsequent to Acquisition 4      
Land and Improvements 0      
Building and Improvements 11      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 11      
Accumulated Depreciation 8      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Fresno, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 120      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 120      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 120      
Accumulated Depreciation 120      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | Camarillo, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 59      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 59      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 59      
Accumulated Depreciation 52      
Book Value of Mortgaged Properties 0      
Intensive Supervision Appearance Program [Member] | SW Houston, TX ISAP [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 50      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 0      
Building and Improvements 55      
Total 55      
Accumulated Depreciation 55      
Book Value of Mortgaged Properties 0      
Correctional Facility [Member] | WEST SALE, VICTORIA AUS [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 2,266      
Land and Improvements 0      
Building and Improvements 2,266      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,266      
Accumulated Depreciation 1,233      
Book Value of Mortgaged Properties 0      
Correctional Facility [Member] | JUNEE, NEW SOUTH WALES, AUS [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 1,036      
Land and Improvements 0      
Building and Improvements 1,036      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,036      
Accumulated Depreciation 939      
Book Value of Mortgaged Properties 0      
Correctional Facility [Member] | LOUIS TRICHARDT, SOUTH AFRICA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 142      
Land and Improvements 0      
Building and Improvements 142      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 142      
Accumulated Depreciation 123      
Book Value of Mortgaged Properties 0      
Detention Facility [Member] | South Lanarkshire, UK [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 653      
Land and Improvements 0      
Building and Improvements 653      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 653      
Accumulated Depreciation 609      
Book Value of Mortgaged Properties 0      
Office Building [Member] | AURORA, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 4      
Costs Capitalized Subsequent to Acquisition 229      
Land and Improvements 0      
Building and Improvements 233      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 233      
Accumulated Depreciation 220      
Book Value of Mortgaged Properties 0      
Office Building [Member] | LOS ANGELES, CA [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 13      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 13      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 13      
Accumulated Depreciation 0      
Book Value of Mortgaged Properties 0      
Office Building [Member] | SAN ANTONIO, TX [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 88      
Land and Improvements 0      
Building and Improvements 88      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 88      
Accumulated Depreciation 87      
Book Value of Mortgaged Properties 0      
Office Building [Member] | BOCA RATON, FL [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 10,019      
Original Buildings and Improvements 49,994      
Costs Capitalized Subsequent to Acquisition 3,987      
Land and Improvements 10,205      
Building and Improvements 52,757      
Land Held for Development 0      
Development and Construction in Progress 1,038      
Total 64,000      
Accumulated Depreciation 2,173      
Book Value of Mortgaged Properties 61,827      
Office Building [Member] | Charlotte, NC [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 54      
Land and Improvements 0      
Building and Improvements 54      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 54      
Accumulated Depreciation 29      
Book Value of Mortgaged Properties 0      
Office Building [Member] | ANDERSON, IN [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 114      
Original Buildings and Improvements 5,260      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 114      
Building and Improvements 5,260      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 5,374      
Accumulated Depreciation 461      
Book Value of Mortgaged Properties 0      
Office Building [Member] | Boulder, CO [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 3,032      
Costs Capitalized Subsequent to Acquisition 172      
Land and Improvements 0      
Building and Improvements 3,204      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,204      
Accumulated Depreciation 1,166      
Book Value of Mortgaged Properties 0      
Office Building [Member] | SYDNEY, AUS [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 10,332      
Land and Improvements 0      
Building and Improvements 10,332      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,332      
Accumulated Depreciation 2,294      
Book Value of Mortgaged Properties 0      
Owned Office Property [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 974      
Original Buildings and Improvements 1,546      
Costs Capitalized Subsequent to Acquisition 7      
Land and Improvements 974      
Building and Improvements 1,553      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,527      
Accumulated Depreciation 354      
Book Value of Mortgaged Properties 0      
Miscellaneous Investments [Member]        
Real Estate And Accumulated Depreciation [Line Items]        
Original Land 29,574      
Original Buildings and Improvements 5,480      
Costs Capitalized Subsequent to Acquisition (263)      
Land and Improvements 8,504      
Building and Improvements 3,464      
Land Held for Development 22,323      
Development and Construction in Progress 500      
Total 34,792      
Accumulated Depreciation 1,302      
Book Value of Mortgaged Properties $ 0