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Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2013
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land $ 137,210      
Original Buildings and Improvements 1,750,608      
Costs Capitalized Subsequent to Acquisition 614,024      
Land and Improvements 123,162      
Building and Improvements 2,274,204      
Land Held for Development 30,621      
Development and Construction in Progress 73,857      
Total 2,501,844 $ 2,255,260 $ 2,214,057 $ 2,026,872
Accumulated Depreciation 492,582 $ 429,814 $ 371,563 $ 317,584
Book Value of Mortgaged Properties 1,147,693      
Broward Transition Center | Deerfield Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 4,085      
Original Buildings and Improvements 15,441      
Costs Capitalized Subsequent to Acquisition 18,582      
Land and Improvements 4,096      
Building and Improvements 33,838      
Land Held for Development 0      
Development and Construction in Progress 174      
Total 38,108      
Accumulated Depreciation 7,768      
Book Value of Mortgaged Properties 30,340      
D. Ray James Correctional Facility | Folkston, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,229      
Original Buildings and Improvements 55,961      
Costs Capitalized Subsequent to Acquisition 17,799      
Land and Improvements 1,720      
Building and Improvements 73,026      
Land Held for Development 243      
Development and Construction in Progress 0      
Total 74,989      
Accumulated Depreciation 12,507      
Book Value of Mortgaged Properties 62,482      
Folkston ICE Processing Center | Folkston, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 291      
Original Buildings and Improvements 30,399      
Costs Capitalized Subsequent to Acquisition 3,201      
Land and Improvements 291      
Building and Improvements 33,600      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 33,891      
Accumulated Depreciation 4,747      
Book Value of Mortgaged Properties 29,144      
LaSalle Detention Facility | Jena, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 856      
Original Buildings and Improvements 51,623      
Costs Capitalized Subsequent to Acquisition 6,242      
Land and Improvements 1,127      
Building and Improvements 57,080      
Land Held for Development 514      
Development and Construction in Progress 0      
Total 58,721      
Accumulated Depreciation 13,652      
Book Value of Mortgaged Properties 45,069      
Alexandria Transfer Center | Alexandria, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 17,283      
Costs Capitalized Subsequent to Acquisition 23      
Land and Improvements 0      
Building and Improvements 17,306      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 17,306      
Accumulated Depreciation 1,172      
Book Value of Mortgaged Properties 0      
Moshannon Valley Correctional Center | Philipsburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,107      
Original Buildings and Improvements 65,160      
Costs Capitalized Subsequent to Acquisition 8,515      
Land and Improvements 1,700      
Building and Improvements 72,995      
Land Held for Development 87      
Development and Construction in Progress 0      
Total 74,782      
Accumulated Depreciation 12,528      
Book Value of Mortgaged Properties 62,254      
North Lake Correctional Facility | Baldwin, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 66      
Original Buildings and Improvements 36,727      
Costs Capitalized Subsequent to Acquisition 52,038      
Land and Improvements 66      
Building and Improvements 87,603      
Land Held for Development 0      
Development and Construction in Progress 1,162      
Total 88,831      
Accumulated Depreciation 11,797      
Book Value of Mortgaged Properties 77,034      
Queens Detention Facility | Jamaica, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,237      
Original Buildings and Improvements 19,847      
Costs Capitalized Subsequent to Acquisition 509      
Land and Improvements 2,237      
Building and Improvements 20,356      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22,593      
Accumulated Depreciation 9,065      
Book Value of Mortgaged Properties 0      
Riverbend Correctional Facility | Milledgeville, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 72,932      
Costs Capitalized Subsequent to Acquisition 399      
Land and Improvements 25      
Building and Improvements 73,147      
Land Held for Development 0      
Development and Construction in Progress 159      
Total 73,331      
Accumulated Depreciation 11,969      
Book Value of Mortgaged Properties 61,362      
Rivers Correctional Institution | Winton, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 875      
Original Buildings and Improvements 60,328      
Costs Capitalized Subsequent to Acquisition 4,804      
Land and Improvements 1,235      
Building and Improvements 64,623      
Land Held for Development 149      
Development and Construction in Progress 0      
Total 66,007      
Accumulated Depreciation 21,624      
Book Value of Mortgaged Properties 44,383      
Robert A. Deyton Detention Facility | Lovejoy, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 8,163      
Costs Capitalized Subsequent to Acquisition 10,291      
Land and Improvements 15      
Building and Improvements 18,439      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 18,454      
Accumulated Depreciation 8,886      
Book Value of Mortgaged Properties 0      
Big Spring Correctional Center | Big Spring, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 530      
Original Buildings and Improvements 83,160      
Costs Capitalized Subsequent to Acquisition 21,418      
Land and Improvements 2,310      
Building and Improvements 94,954      
Land Held for Development 0      
Development and Construction in Progress 7,844      
Total 105,108      
Accumulated Depreciation 24,358      
Book Value of Mortgaged Properties 0      
Great Plains Correctional Facility | Hinton, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 463      
Original Buildings and Improvements 76,580      
Costs Capitalized Subsequent to Acquisition 13,915      
Land and Improvements 1,305      
Building and Improvements 88,272      
Land Held for Development 0      
Development and Construction in Progress 1,381      
Total 90,958      
Accumulated Depreciation 14,686      
Book Value of Mortgaged Properties 76,272      
Joe Corley Detention Facility | Conroe, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 470      
Original Buildings and Improvements 64,813      
Costs Capitalized Subsequent to Acquisition 6,773      
Land and Improvements 598      
Building and Improvements 69,513      
Land Held for Development 0      
Development and Construction in Progress 1,945      
Total 72,056      
Accumulated Depreciation 7,489      
Book Value of Mortgaged Properties 64,567      
Karnes Correctional Center | Karnes City, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 937      
Original Buildings and Improvements 24,825      
Costs Capitalized Subsequent to Acquisition 1,734      
Land and Improvements 912      
Building and Improvements 26,408      
Land Held for Development 176      
Development and Construction in Progress 0      
Total 27,496      
Accumulated Depreciation 7,243      
Book Value of Mortgaged Properties 20,253      
Karnes County Residential Center | Karnes City, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 29,052      
Costs Capitalized Subsequent to Acquisition 30,085      
Land and Improvements 47      
Building and Improvements 59,090      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 59,137      
Accumulated Depreciation 5,425      
Book Value of Mortgaged Properties 53,712      
Lawton Correctional Facility | Lawton, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,012      
Original Buildings and Improvements 96,637      
Costs Capitalized Subsequent to Acquisition 11,710      
Land and Improvements 1,073      
Building and Improvements 106,705      
Land Held for Development 0      
Development and Construction in Progress 1,581      
Total 109,359      
Accumulated Depreciation 23,796      
Book Value of Mortgaged Properties 85,563      
Rio Grande Detention Center | Laredo, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 8,365      
Original Buildings and Improvements 81,178      
Costs Capitalized Subsequent to Acquisition 1,301      
Land and Improvements 6,266      
Building and Improvements 82,428      
Land Held for Development 2,099      
Development and Construction in Progress 51      
Total 90,844      
Accumulated Depreciation 15,754      
Book Value of Mortgaged Properties 75,090      
South Texas Detention Complex | Pearsall, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 437      
Original Buildings and Improvements 31,405      
Costs Capitalized Subsequent to Acquisition 6,052      
Land and Improvements 437      
Building and Improvements 37,081      
Land Held for Development 0      
Development and Construction in Progress 376      
Total 37,894      
Accumulated Depreciation 9,668      
Book Value of Mortgaged Properties 0      
Val Verde Correctional Facility | Del Rio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 21      
Original Buildings and Improvements 56,009      
Costs Capitalized Subsequent to Acquisition 1,356      
Land and Improvements 16      
Building and Improvements 57,365      
Land Held for Development 5      
Development and Construction in Progress 0      
Total 57,386      
Accumulated Depreciation 15,330      
Book Value of Mortgaged Properties 42,056      
Adelanto Detention Facility | Adelanto, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 8,005      
Original Buildings and Improvements 113,255      
Costs Capitalized Subsequent to Acquisition 43,007      
Land and Improvements 10,278      
Building and Improvements 153,989      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 164,267      
Accumulated Depreciation 16,529      
Book Value of Mortgaged Properties 147,738      
Aurora/ICE Processing Center | Aurora, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 4,590      
Original Buildings and Improvements 15,200      
Costs Capitalized Subsequent to Acquisition 75,145      
Land and Improvements 4,271      
Building and Improvements 89,354      
Land Held for Development 1,310      
Development and Construction in Progress 0      
Total 94,935      
Accumulated Depreciation 15,641      
Book Value of Mortgaged Properties 79,294      
Central Valley MCCF | Mc Farland, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,055      
Original Buildings and Improvements 28,133      
Costs Capitalized Subsequent to Acquisition 2,829      
Land and Improvements 906      
Building and Improvements 30,900      
Land Held for Development 211      
Development and Construction in Progress 0      
Total 32,017      
Accumulated Depreciation 8,301      
Book Value of Mortgaged Properties 23,716      
Desert View MCCF | Adelanto, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,245      
Original Buildings and Improvements 27,943      
Costs Capitalized Subsequent to Acquisition 4,459      
Land and Improvements 1,245      
Building and Improvements 32,400      
Land Held for Development 0      
Development and Construction in Progress 2      
Total 33,647      
Accumulated Depreciation 9,417      
Book Value of Mortgaged Properties 24,230      
Golden State MCCF | Mc Farland, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,264      
Original Buildings and Improvements 27,924      
Costs Capitalized Subsequent to Acquisition 2,481      
Land and Improvements 1,073      
Building and Improvements 30,343      
Land Held for Development 253      
Development and Construction in Progress 0      
Total 31,669      
Accumulated Depreciation 8,043      
Book Value of Mortgaged Properties 23,626      
Guadalupe County Correctional Facility | Santa Rosa, NM        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 181      
Original Buildings and Improvements 29,732      
Costs Capitalized Subsequent to Acquisition 931      
Land and Improvements 27      
Building and Improvements 30,663      
Land Held for Development 154      
Development and Construction in Progress 0      
Total 30,844      
Accumulated Depreciation 11,336      
Book Value of Mortgaged Properties 19,508      
Hudson Correctional Facility | Hudson, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 11,140      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 4,599      
Land and Improvements 7,372      
Building and Improvements 4,447      
Land Held for Development 3,920      
Development and Construction in Progress 0      
Total 15,739      
Accumulated Depreciation 4,705      
Book Value of Mortgaged Properties 0      
Lea County Correctional Facility | Hobbs, NM        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 347      
Original Buildings and Improvements 67,933      
Costs Capitalized Subsequent to Acquisition 2,631      
Land and Improvements 0      
Building and Improvements 70,564      
Land Held for Development 347      
Development and Construction in Progress 0      
Total 70,911      
Accumulated Depreciation 17,595      
Book Value of Mortgaged Properties 0      
McFarland CCF | Mc Farland, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 914      
Original Buildings and Improvements 9,019      
Costs Capitalized Subsequent to Acquisition 9,078      
Land and Improvements 2,036      
Building and Improvements 16,684      
Land Held for Development 183      
Development and Construction in Progress 108      
Total 19,011      
Accumulated Depreciation 4,694      
Book Value of Mortgaged Properties 0      
Mesa Verde CCF | Bakersfield, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,237      
Original Buildings and Improvements 13,714      
Costs Capitalized Subsequent to Acquisition 12,091      
Land and Improvements 2,237      
Building and Improvements 25,720      
Land Held for Development 0      
Development and Construction in Progress 85      
Total 28,042      
Accumulated Depreciation 4,105      
Book Value of Mortgaged Properties 0      
Northwest Detention Center | Tacoma, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 3,916      
Original Buildings and Improvements 39,000      
Costs Capitalized Subsequent to Acquisition 50,014      
Land and Improvements 4,542      
Building and Improvements 86,334      
Land Held for Development 2,004      
Development and Construction in Progress 50      
Total 92,930      
Accumulated Depreciation 19,300      
Book Value of Mortgaged Properties 0      
Western Region Detention Facility | San Diego, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 28,071      
Costs Capitalized Subsequent to Acquisition 1,307      
Land and Improvements 0      
Building and Improvements 29,378      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 29,378      
Accumulated Depreciation 29,213      
Book Value of Mortgaged Properties 0      
Delaney Hall | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 3,759      
Original Buildings and Improvements 22,502      
Costs Capitalized Subsequent to Acquisition 13,175      
Land and Improvements 3,779      
Building and Improvements 35,651      
Land Held for Development 0      
Development and Construction in Progress 6      
Total 39,436      
Accumulated Depreciation 9,416      
Book Value of Mortgaged Properties 0      
Brooks County Detention Center | Falfurrias, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 410      
Original Buildings and Improvements 18,940      
Costs Capitalized Subsequent to Acquisition 652      
Land and Improvements 414      
Building and Improvements 19,508      
Land Held for Development 0      
Development and Construction in Progress 80      
Total 20,002      
Accumulated Depreciation 1,459      
Book Value of Mortgaged Properties 0      
East Hidalgo Detention Center | LaVilla, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 460      
Original Buildings and Improvements 28,010      
Costs Capitalized Subsequent to Acquisition 543      
Land and Improvements 502      
Building and Improvements 28,485      
Land Held for Development 0      
Development and Construction in Progress 26      
Total 29,013      
Accumulated Depreciation 1,894      
Book Value of Mortgaged Properties 0      
Perry County Correctional Center | Uniontown, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 400      
Original Buildings and Improvements 12,880      
Costs Capitalized Subsequent to Acquisition 392      
Land and Improvements 400      
Building and Improvements 13,272      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 13,672      
Accumulated Depreciation 971      
Book Value of Mortgaged Properties 0      
Pine Prairie Correctional Center | Pine Prairie, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 260      
Original Buildings and Improvements 11,910      
Costs Capitalized Subsequent to Acquisition 4,675      
Land and Improvements 706      
Building and Improvements 13,003      
Land Held for Development 477      
Development and Construction in Progress 2,659      
Total 16,845      
Accumulated Depreciation 1,161      
Book Value of Mortgaged Properties 0      
South Louisiana Correctional Center | Basile, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 290      
Original Buildings and Improvements 13,040      
Costs Capitalized Subsequent to Acquisition 15,174      
Land and Improvements 290      
Building and Improvements 28,214      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28,504      
Accumulated Depreciation 1,197      
Book Value of Mortgaged Properties 0      
J. B. Evans Correctional Center | Newellton, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 30      
Original Buildings and Improvements 720      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 30      
Building and Improvements 720      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 750      
Accumulated Depreciation 146      
Book Value of Mortgaged Properties 0      
Coastal Bend Detention Center | Robstown, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,330      
Original Buildings and Improvements 26,820      
Costs Capitalized Subsequent to Acquisition 746      
Land and Improvements 1,349      
Building and Improvements 27,547      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28,896      
Accumulated Depreciation 2,122      
Book Value of Mortgaged Properties 0      
Maverick County Detention Facility | Maverick County Detention Center        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 296      
Original Buildings and Improvements 15,437      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 296      
Building and Improvements 15,437      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 15,733      
Accumulated Depreciation 311      
Book Value of Mortgaged Properties 0      
Liberty Hall | Indianapolis, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 890      
Original Buildings and Improvements 2,066      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 890      
Building and Improvements 2,066      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,956      
Accumulated Depreciation 199      
Book Value of Mortgaged Properties 0      
Montgomery ICE Processing Center | Conroe, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,012      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 43,879      
Land and Improvements 2,012      
Building and Improvements 0      
Land Held for Development 0      
Development and Construction in Progress 43,879      
Total 45,891      
Accumulated Depreciation 41      
Book Value of Mortgaged Properties 0      
Central Texas Detention Facility | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 3,990      
Land and Improvements 0      
Building and Improvements 3,990      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,990      
Accumulated Depreciation 3,340      
Book Value of Mortgaged Properties 0      
Lawrenceville Correctional Center | Lawrenceville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 844      
Land and Improvements 0      
Building and Improvements 844      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 844      
Accumulated Depreciation 863      
Book Value of Mortgaged Properties 0      
Arizona State Prison- Florence West | Florence, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 320      
Original Buildings and Improvements 9,317      
Costs Capitalized Subsequent to Acquisition 1,183      
Land and Improvements 320      
Building and Improvements 10,405      
Land Held for Development 0      
Development and Construction in Progress 95      
Total 10,820      
Accumulated Depreciation 7,817      
Book Value of Mortgaged Properties 0      
Arizona State Prison- Phoenix West | Phoenix, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7,919      
Costs Capitalized Subsequent to Acquisition 518      
Land and Improvements 0      
Building and Improvements 8,437      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 8,437      
Accumulated Depreciation 5,992      
Book Value of Mortgaged Properties 0      
Central Arizona Correctional Facility | Florence, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 396      
Costs Capitalized Subsequent to Acquisition 1,997      
Land and Improvements 0      
Building and Improvements 2,393      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,393      
Accumulated Depreciation 1,857      
Book Value of Mortgaged Properties 0      
Arizona State Prison Kingman | Kingman, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 273      
Land and Improvements 0      
Building and Improvements 273      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 273      
Accumulated Depreciation 67      
Book Value of Mortgaged Properties 0      
New Castle Correctional Facility | New Castle, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 22,848      
Land and Improvements 0      
Building and Improvements 22,848      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22,848      
Accumulated Depreciation 8,546      
Book Value of Mortgaged Properties 0      
Heritage Trail Correctional Facility | Plainfield, IN        
SEC Schedule III, 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 8      
Book Value of Mortgaged Properties 0      
South Bay Correctional Facility | Lawrenceville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Book Value of Mortgaged Properties 0      
South Bay Correctional Facility | South Bay, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 2,458      
Land and Improvements 0      
Building and Improvements 2,458      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,458      
Accumulated Depreciation 2,369      
Reeves County Detention Complex R1/R2 | Pecos, TX        
SEC Schedule III, 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      
Reeves County Detention Complex R3 | Phoenix, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Book Value of Mortgaged Properties 0      
Reeves County Detention Complex R3 | Pecos, TX        
SEC Schedule III, 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 4,234      
Northeast New Mexico Detention Facility | Clayton, NM        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 316      
Land and Improvements 0      
Building and Improvements 316      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 316      
Accumulated Depreciation 307      
Book Value of Mortgaged Properties 0      
Blackwater River Correctional Facility | Milton, FL        
SEC Schedule III, 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      
Bay Correctonal Facility | Panama City, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 6      
Land and Improvements 0      
Building and Improvements 6      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 6      
Accumulated Depreciation 6      
Book Value of Mortgaged Properties 0      
Moore Haven Correctional Facility | Moore Haven, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 32      
Land and Improvements 0      
Building and Improvements 32      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 32      
Accumulated Depreciation 19      
Book Value of Mortgaged Properties 0      
Graceville Correctional Facility | Jackson, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 531      
Land and Improvements 0      
Building and Improvements 531      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 531      
Accumulated Depreciation 307      
Book Value of Mortgaged Properties 0      
Columbiana County Jail | LISBON, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 22      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 22      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22      
Accumulated Depreciation 8      
Book Value of Mortgaged Properties 0      
George W. Hill Correctional Facility | Glen Mills, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 34      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 0      
Building and Improvements 39      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 39      
Accumulated Depreciation 6      
Book Value of Mortgaged Properties 0      
Fannin County Detention Center & South Annex | Bonham, TX        
SEC Schedule III, 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 4      
Book Value of Mortgaged Properties 0      
Kinney County Detention Center | Bracketville, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 223      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 223      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 223      
Accumulated Depreciation 26      
Book Value of Mortgaged Properties 0      
Liberty County Jail | Liberty, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 112      
Costs Capitalized Subsequent to Acquisition 2      
Land and Improvements 0      
Building and Improvements 114      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 114      
Accumulated Depreciation 45      
Book Value of Mortgaged Properties 0      
Beaumont Transitional Treatment Center | Beaumont, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 105      
Original Buildings and Improvements 560      
Costs Capitalized Subsequent to Acquisition 463      
Land and Improvements 132      
Building and Improvements 996      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,128      
Accumulated Depreciation 401      
Book Value of Mortgaged Properties 0      
Bronx Community Re-entry Center | Bronx, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 154      
Costs Capitalized Subsequent to Acquisition 3,170      
Land and Improvements 0      
Building and Improvements 3,324      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,324      
Accumulated Depreciation 2,394      
Book Value of Mortgaged Properties 0      
Cordova Center | Anchorage, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 235      
Original Buildings and Improvements 3,225      
Costs Capitalized Subsequent to Acquisition 4,092      
Land and Improvements 235      
Building and Improvements 7,209      
Land Held for Development 0      
Development and Construction in Progress 108      
Total 7,552      
Accumulated Depreciation 1,797      
Book Value of Mortgaged Properties 0      
El Monte Center | El Monte, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 47      
Costs Capitalized Subsequent to Acquisition 321      
Land and Improvements 0      
Building and Improvements 368      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 368      
Accumulated Depreciation 361      
Book Value of Mortgaged Properties 0      
Grossman Center | Leavenworth, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 24      
Costs Capitalized Subsequent to Acquisition 41      
Land and Improvements 0      
Building and Improvements 65      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 65      
Accumulated Depreciation 52      
Book Value of Mortgaged Properties 0      
Las Vegas Community Correctional Center | Las Vegas, NV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 520      
Original Buildings and Improvements 1,580      
Costs Capitalized Subsequent to Acquisition 433      
Land and Improvements 520      
Building and Improvements 2,013      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,533      
Accumulated Depreciation 449      
Book Value of Mortgaged Properties 0      
Leidel Comprehensive Sanction Center | Houston, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 3,210      
Original Buildings and Improvements 710      
Costs Capitalized Subsequent to Acquisition 542      
Land and Improvements 3,210      
Building and Improvements 1,252      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,462      
Accumulated Depreciation 404      
Book Value of Mortgaged Properties 0      
Marvin Gardens Center | Los Angeles, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 50      
Costs Capitalized Subsequent to Acquisition 2,535      
Land and Improvements 241      
Building and Improvements 2,303      
Land Held for Development 0      
Development and Construction in Progress 41      
Total 2,585      
Accumulated Depreciation 288      
Book Value of Mortgaged Properties 0      
McCabe Center | Austin, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 350      
Original Buildings and Improvements 510      
Costs Capitalized Subsequent to Acquisition 529      
Land and Improvements 350      
Building and Improvements 1,039      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,389      
Accumulated Depreciation 568      
Book Value of Mortgaged Properties 0      
Mid Valley House | Edinburg, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 694      
Original Buildings and Improvements 3,608      
Costs Capitalized Subsequent to Acquisition 225      
Land and Improvements 700      
Building and Improvements 3,827      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,527      
Accumulated Depreciation 342      
Book Value of Mortgaged Properties 0      
Midtown Center | Anchorage, AK        
SEC Schedule III, 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 135      
Book Value of Mortgaged Properties 0      
Newark Residential Re-entry Center | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 799      
Costs Capitalized Subsequent to Acquisition 1,406      
Land and Improvements 0      
Building and Improvements 2,205      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,205      
Accumulated Depreciation 1,180      
Book Value of Mortgaged Properties 0      
Northstar Center | Fairbanks, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 12      
Costs Capitalized Subsequent to Acquisition 250      
Land and Improvements 0      
Building and Improvements 262      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 262      
Accumulated Depreciation 262      
Book Value of Mortgaged Properties 0      
Oakland Center | Oakland, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 970      
Original Buildings and Improvements 250      
Costs Capitalized Subsequent to Acquisition 79      
Land and Improvements 970      
Building and Improvements 328      
Land Held for Development 0      
Development and Construction in Progress 1      
Total 1,299      
Accumulated Depreciation 131      
Book Value of Mortgaged Properties 0      
Parkview Center | Anchorage, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 160      
Original Buildings and Improvements 1,480      
Costs Capitalized Subsequent to Acquisition 307      
Land and Improvements 160      
Building and Improvements 1,787      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,947      
Accumulated Depreciation 698      
Book Value of Mortgaged Properties 0      
Reality House | Brownsville, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 487      
Original Buildings and Improvements 2,771      
Costs Capitalized Subsequent to Acquisition 155      
Land and Improvements 493      
Building and Improvements 2,915      
Land Held for Development 0      
Development and Construction in Progress 5      
Total 3,413      
Accumulated Depreciation 429      
Book Value of Mortgaged Properties 0      
Southeast Texas Transitional Center | Houston, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 910      
Original Buildings and Improvements 3,210      
Costs Capitalized Subsequent to Acquisition 2,421      
Land and Improvements 1,043      
Building and Improvements 2,668      
Land Held for Development 0      
Development and Construction in Progress 2,830      
Total 6,541      
Accumulated Depreciation 806      
Book Value of Mortgaged Properties 0      
Salt Lake City Center | Salt Lake City, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 751      
Original Buildings and Improvements 1,505      
Costs Capitalized Subsequent to Acquisition 120      
Land and Improvements 751      
Building and Improvements 1,625      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,376      
Accumulated Depreciation 192      
Book Value of Mortgaged Properties 0      
Seaside Center | Nome, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 67      
Original Buildings and Improvements 732      
Costs Capitalized Subsequent to Acquisition 3,938      
Land and Improvements 67      
Building and Improvements 4,670      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,737      
Accumulated Depreciation 225      
Book Value of Mortgaged Properties 0      
Taylor Street Center | San Francisco, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 3,230      
Original Buildings and Improvements 900      
Costs Capitalized Subsequent to Acquisition 3,112      
Land and Improvements 3,230      
Building and Improvements 3,999      
Land Held for Development 0      
Development and Construction in Progress 13      
Total 7,242      
Accumulated Depreciation 1,049      
Book Value of Mortgaged Properties 0      
Tundra Center | Bethel, AK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 20      
Original Buildings and Improvements 1,190      
Costs Capitalized Subsequent to Acquisition 1,361      
Land and Improvements 79      
Building and Improvements 2,492      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,571      
Accumulated Depreciation 1,149      
Book Value of Mortgaged Properties 0      
Alabama Therapeutic Education | Columbiana, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 760      
Original Buildings and Improvements 17,118      
Costs Capitalized Subsequent to Acquisition 56      
Land and Improvements 760      
Building and Improvements 17,174      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 17,934      
Accumulated Depreciation 334      
Book Value of Mortgaged Properties 0      
Casper Reentry Center | Casper, WY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 600      
Original Buildings and Improvements 6,046      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 600      
Building and Improvements 6,046      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 6,646      
Accumulated Depreciation 183      
Book Value of Mortgaged Properties 0      
Toler House | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 88      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 88      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 88      
Accumulated Depreciation 9      
Book Value of Mortgaged Properties 0      
Logan Hall | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 6,888      
Costs Capitalized Subsequent to Acquisition 14      
Land and Improvements 0      
Building and Improvements 6,888      
Land Held for Development 0      
Development and Construction in Progress 14      
Total 6,902      
Accumulated Depreciation 695      
Book Value of Mortgaged Properties 0      
Long Beach Community Reentry Center | Long Beach, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 513      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 513      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 513      
Accumulated Depreciation 123      
Book Value of Mortgaged Properties 0      
Arapahoe County Residential Center | Litlletown, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,100      
Original Buildings and Improvements 2,485      
Costs Capitalized Subsequent to Acquisition 23      
Land and Improvements 2,100      
Building and Improvements 2,508      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 4,608      
Accumulated Depreciation 97      
Book Value of Mortgaged Properties 0      
Cheyenne Mountain Reentry Center | Colorado Springs, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 270      
Original Buildings and Improvements 18,853      
Costs Capitalized Subsequent to Acquisition 27      
Land and Improvements 270      
Building and Improvements 18,880      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 19,150      
Accumulated Depreciation 395      
Book Value of Mortgaged Properties 0      
Community Alternatives of El Paso County | Colorado Springs, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 560      
Original Buildings and Improvements 1,553      
Costs Capitalized Subsequent to Acquisition 15      
Land and Improvements 510      
Building and Improvements 1,568      
Land Held for Development 50      
Development and Construction in Progress 0      
Total 2,128      
Accumulated Depreciation 61      
Book Value of Mortgaged Properties 0      
Correctional Alternative Placement Services | Craig, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 126      
Original Buildings and Improvements 289      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 126      
Building and Improvements 294      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 420      
Accumulated Depreciation 23      
Book Value of Mortgaged Properties 0      
Tooley Hall | Murray, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 315      
Original Buildings and Improvements 502      
Costs Capitalized Subsequent to Acquisition 148      
Land and Improvements 315      
Building and Improvements 586      
Land Held for Development 0      
Development and Construction in Progress 64      
Total 965      
Accumulated Depreciation 47      
Book Value of Mortgaged Properties 0      
Williams Street Center | Murray, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,000      
Original Buildings and Improvements 518      
Costs Capitalized Subsequent to Acquisition 19      
Land and Improvements 1,000      
Building and Improvements 520      
Land Held for Development 0      
Development and Construction in Progress 17      
Total 1,537      
Accumulated Depreciation 28      
Book Value of Mortgaged Properties 0      
Albert BO Robinson Assessment Treatment Center | Trenton, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 380      
Original Buildings and Improvements 16,578      
Costs Capitalized Subsequent to Acquisition 14      
Land and Improvements 380      
Building and Improvements 16,578      
Land Held for Development 0      
Development and Construction in Progress 14      
Total 16,972      
Accumulated Depreciation 448      
Book Value of Mortgaged Properties 0      
Talbot Hall | Kearney, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2,854      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 2,864      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,864      
Accumulated Depreciation 439      
Book Value of Mortgaged Properties 0      
The Harbor | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 93      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 93      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 93      
Accumulated Depreciation 9      
Book Value of Mortgaged Properties 0      
Tully House | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,150      
Original Buildings and Improvements 5,313      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 1,150      
Building and Improvements 5,313      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 6,463      
Accumulated Depreciation 159      
Book Value of Mortgaged Properties 0      
ADAPPT | Reading, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 110      
Original Buildings and Improvements 2,460      
Costs Capitalized Subsequent to Acquisition 58      
Land and Improvements 110      
Building and Improvements 2,507      
Land Held for Development 0      
Development and Construction in Progress 11      
Total 2,628      
Accumulated Depreciation 97      
Book Value of Mortgaged Properties 0      
Alle Kiski Pavilion | Arnold, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 30      
Original Buildings and Improvements 1,345      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 30      
Building and Improvements 1,345      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,375      
Accumulated Depreciation 55      
Book Value of Mortgaged Properties 0      
Broad Street | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 83      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 83      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 83      
Accumulated Depreciation 20      
Book Value of Mortgaged Properties 0      
Chester County | Chester, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 54      
Costs Capitalized Subsequent to Acquisition 2      
Land and Improvements 0      
Building and Improvements 56      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 56      
Accumulated Depreciation 18      
Book Value of Mortgaged Properties 0      
Coleman Hall | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 390      
Original Buildings and Improvements 19,023      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 390      
Building and Improvements 19,023      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 19,413      
Accumulated Depreciation 536      
Book Value of Mortgaged Properties 0      
Hoffman Hall | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 23      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 5      
Building and Improvements 23      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28      
Accumulated Depreciation 4      
Book Value of Mortgaged Properties 0      
Oxford Facility | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 45      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 45      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 45      
Accumulated Depreciation 10      
Book Value of Mortgaged Properties 0      
Penn Pavilion | New Brighton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 231      
Original Buildings and Improvements 1,895      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 231      
Building and Improvements 1,895      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,126      
Accumulated Depreciation 108      
Book Value of Mortgaged Properties 0      
Roth Hall | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 44      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 44      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 44      
Accumulated Depreciation 10      
Book Value of Mortgaged Properties 0      
Walker Hall | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 55      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 55      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 55      
Accumulated Depreciation 15      
Book Value of Mortgaged Properties 0      
Community Alternatives of the Black Hills | Rapid City, SD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 7      
Original Buildings and Improvements 2,719      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 7      
Building and Improvements 2,719      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,726      
Accumulated Depreciation 97      
Book Value of Mortgaged Properties 0      
Abraxas Academy | Morgantown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 4,220      
Original Buildings and Improvements 14,120      
Costs Capitalized Subsequent to Acquisition 1,334      
Land and Improvements 4,230      
Building and Improvements 15,444      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 19,674      
Accumulated Depreciation 3,044      
Book Value of Mortgaged Properties 0      
Abraxas I | Marienville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 990      
Original Buildings and Improvements 7,600      
Costs Capitalized Subsequent to Acquisition 1,554      
Land and Improvements 1,028      
Building and Improvements 9,040      
Land Held for Development 0      
Development and Construction in Progress 76      
Total 10,144      
Accumulated Depreciation 2,267      
Book Value of Mortgaged Properties 0      
Abraxas Ohio | Shelby, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,160      
Original Buildings and Improvements 2,900      
Costs Capitalized Subsequent to Acquisition 982      
Land and Improvements 1,197      
Building and Improvements 3,845      
Land Held for Development 0      
Total 5,042      
Accumulated Depreciation 1,022      
Book Value of Mortgaged Properties 0      
Abraxas Youth Center | South Mountain, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 36      
Costs Capitalized Subsequent to Acquisition 407      
Land and Improvements 0      
Building and Improvements 443      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 443      
Accumulated Depreciation 376      
Book Value of Mortgaged Properties 0      
DuPage Interventions | Hinsdale, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,110      
Original Buildings and Improvements 1,190      
Costs Capitalized Subsequent to Acquisition 283      
Land and Improvements 2,110      
Building and Improvements 1,473      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,583      
Accumulated Depreciation 446      
Book Value of Mortgaged Properties 0      
Hector Garza Center | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 1,590      
Original Buildings and Improvements 3,540      
Costs Capitalized Subsequent to Acquisition 932      
Land and Improvements 1,642      
Building and Improvements 4,358      
Land Held for Development 0      
Development and Construction in Progress 62      
Total 6,062      
Accumulated Depreciation 1,001      
Book Value of Mortgaged Properties 0      
Leadership Development Program | South Mountain, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 25      
Costs Capitalized Subsequent to Acquisition 600      
Land and Improvements 0      
Building and Improvements 610      
Land Held for Development 0      
Development and Construction in Progress 15      
Total 625      
Accumulated Depreciation 410      
Book Value of Mortgaged Properties 0      
Southern Peaks Regional Treatment Center | Canon City, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 2,850      
Original Buildings and Improvements 11,350      
Costs Capitalized Subsequent to Acquisition 620      
Land and Improvements 3,000      
Building and Improvements 11,759      
Land Held for Development 0      
Development and Construction in Progress 61      
Total 14,820      
Accumulated Depreciation 2,555      
Book Value of Mortgaged Properties 0      
Southwood Interventions | Chicago, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 870      
Original Buildings and Improvements 6,310      
Costs Capitalized Subsequent to Acquisition 1,043      
Land and Improvements 898      
Building and Improvements 7,318      
Land Held for Development 0      
Development and Construction in Progress 7      
Total 8,223      
Accumulated Depreciation 2,132      
Book Value of Mortgaged Properties 0      
Woodridge Interventions | Woodridge, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 5,160      
Original Buildings and Improvements 4,330      
Costs Capitalized Subsequent to Acquisition 826      
Land and Improvements 5,304      
Building and Improvements 5,012      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,316      
Accumulated Depreciation 1,374      
Book Value of Mortgaged Properties 0      
Contact Interventions | Wauconda, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 719      
Original Buildings and Improvements 1,110      
Costs Capitalized Subsequent to Acquisition (638)      
Land and Improvements 699      
Building and Improvements 492      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,191      
Accumulated Depreciation 170      
Book Value of Mortgaged Properties 0      
Neptune CRC | Neptune City, NJ        
SEC Schedule III, 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 7      
Book Value of Mortgaged Properties 0      
Perth Amboy CRC | Perth Amboy, NJ        
SEC Schedule III, 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      
CDCR Contra Costa Day Reporting Center | Richmond, VA        
SEC Schedule III, 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 8      
Book Value of Mortgaged Properties 0      
Neptune CRC | Elizabeth, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 16      
Costs Capitalized Subsequent to Acquisition 30      
Land and Improvements 0      
Building and Improvements 46      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 46      
Accumulated Depreciation 23      
Book Value of Mortgaged Properties 0      
Perth Amboy CRC | Perth Amboy, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 19      
Costs Capitalized Subsequent to Acquisition 36      
Land and Improvements 0      
Building and Improvements 55      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 55      
Accumulated Depreciation 45      
Book Value of Mortgaged Properties 0      
Elizabeth CRC | Elizabeth, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 26      
Costs Capitalized Subsequent to Acquisition (16)      
Land and Improvements 0      
Building and Improvements 10      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10      
Accumulated Depreciation 6      
Book Value of Mortgaged Properties 0      
Atlantic City CRC | Atlantic City, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 10      
Costs Capitalized Subsequent to Acquisition 18      
Land and Improvements 0      
Building and Improvements 28      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 28      
Accumulated Depreciation 16      
Book Value of Mortgaged Properties 0      
Orange DRC | Santa Ana, CA        
SEC Schedule III, 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      
Lancaster County PADOC DRC | Lancaster, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 73      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 73      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 73      
Accumulated Depreciation 57      
Book Value of Mortgaged Properties 0      
Lycoming County DRC | Williamsport, PA        
SEC Schedule III, 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 88      
Book Value of Mortgaged Properties 0      
Aurora DRC | Aurora, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 163      
Costs Capitalized Subsequent to Acquisition (1)      
Land and Improvements 0      
Building and Improvements 162      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 162      
Accumulated Depreciation 88      
Book Value of Mortgaged Properties 0      
Los Angeles CDCR | Sacracmento, CA        
SEC Schedule III, 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 3      
Book Value of Mortgaged Properties 0      
Denver DRC | Denver, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 12      
Land and Improvements 0      
Building and Improvements 12      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 12      
Accumulated Depreciation 3      
Book Value of Mortgaged Properties 0      
Merced DRC | Merced, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 21      
Costs Capitalized Subsequent to Acquisition 3      
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      
Aurora DRC | Aurora, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 21      
Costs Capitalized Subsequent to Acquisition 23      
Land and Improvements 0      
Building and Improvements 44      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 44      
Accumulated Depreciation 44      
Book Value of Mortgaged Properties 0      
Denver DRC | Murray, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 43      
Costs Capitalized Subsequent to Acquisition 294      
Land and Improvements 0      
Building and Improvements 337      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 337      
Accumulated Depreciation 127      
Book Value of Mortgaged Properties 0      
Merced DRC | Merced, CA        
SEC Schedule III, 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      
Luzerne EM | Wilkes Barre, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 20      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 20      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20      
Accumulated Depreciation 20      
Book Value of Mortgaged Properties 0      
Luzerne DRC | Wilkes Barre, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 110      
Costs Capitalized Subsequent to Acquisition 7      
Land and Improvements 0      
Building and Improvements 117      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 117      
Accumulated Depreciation 114      
Book Value of Mortgaged Properties 0      
Sedgwick DRC | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 23      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 23      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 23      
Accumulated Depreciation 23      
Book Value of Mortgaged Properties 0      
Newark ISAP | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 3      
Costs Capitalized Subsequent to Acquisition 19      
Land and Improvements 0      
Building and Improvements 22      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22      
Accumulated Depreciation 12      
Book Value of Mortgaged Properties 0      
Chicago West Grand SRC | Chicago, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 22      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 0      
Building and Improvements 27      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 27      
Accumulated Depreciation 23      
Book Value of Mortgaged Properties 0      
Richmond, VA ISAP | Richmond, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 19      
Land and Improvements 0      
Building and Improvements 21      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 21      
Accumulated Depreciation 11      
Book Value of Mortgaged Properties 0      
Decatur SRC | Decatur, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 28      
Costs Capitalized Subsequent to Acquisition 33      
Land and Improvements 0      
Building and Improvements 61      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 61      
Accumulated Depreciation 49      
Book Value of Mortgaged Properties 0      
Los Angeles ISAP | Los Angeles, CA        
SEC Schedule III, 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 8      
Book Value of Mortgaged Properties 0      
San Bernadino ISAP | San Bernadino ISAP        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 53      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 53      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 53      
Accumulated Depreciation 29      
Book Value of Mortgaged Properties 0      
Philadelphia ISAP | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 378      
Costs Capitalized Subsequent to Acquisition (117)      
Land and Improvements 0      
Building and Improvements 261      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 261      
Accumulated Depreciation 158      
Book Value of Mortgaged Properties 0      
Miami ISAP | Miami, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 82      
Costs Capitalized Subsequent to Acquisition 9      
Land and Improvements 0      
Building and Improvements 91      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 91      
Accumulated Depreciation 88      
Book Value of Mortgaged Properties 0      
Houston ISAP | Houston, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 26      
Costs Capitalized Subsequent to Acquisition 3      
Land and Improvements 0      
Building and Improvements 29      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 29      
Accumulated Depreciation 5      
Book Value of Mortgaged Properties 0      
Orlando ISAP | Orlando, FL        
SEC Schedule III, 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      
Atlanta ISAP | Atlanta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 268      
Costs Capitalized Subsequent to Acquisition (54)      
Land and Improvements 0      
Building and Improvements 214      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 214      
Accumulated Depreciation 125      
Book Value of Mortgaged Properties 0      
New Orleans ISAP | New Orleans, LA        
SEC Schedule III, 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 34      
Book Value of Mortgaged Properties 0      
Washington DC ISAP | Fairfax, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 20      
Costs Capitalized Subsequent to Acquisition 2      
Land and Improvements 0      
Building and Improvements 22      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22      
Accumulated Depreciation 14      
Book Value of Mortgaged Properties 0      
Charleston, SC ISAP | Fresno, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 39      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 39      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 39      
Accumulated Depreciation 24      
Book Value of Mortgaged Properties 0      
Chicago ISAP | Chicago, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 25      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 25      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 25      
Accumulated Depreciation 25      
Book Value of Mortgaged Properties 0      
Detroit ISAP | Detroit, MI        
SEC Schedule III, 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      
Denver ISAP | Centennial, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 173      
Costs Capitalized Subsequent to Acquisition (6)      
Land and Improvements 0      
Building and Improvements 167      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 167      
Accumulated Depreciation 98      
Book Value of Mortgaged Properties 0      
St. Louis MO ISAP | St. Louis, MO        
SEC Schedule III, 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 27      
Book Value of Mortgaged Properties 0      
Louisville, KY ISAP | Louisville, KY        
SEC Schedule III, 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 1      
Book Value of Mortgaged Properties 0      
Indianapolis, IN ISAP | Indianapolis, IN        
SEC Schedule III, 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 15      
Book Value of Mortgaged Properties 0      
San Francisco ISAP | San Francisco, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 272      
Costs Capitalized Subsequent to Acquisition (92)      
Land and Improvements 0      
Building and Improvements 180      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 180      
Accumulated Depreciation 105      
Book Value of Mortgaged Properties 0      
Salt Lake City ISAP | Murray, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7      
Costs Capitalized Subsequent to Acquisition 17      
Land and Improvements 0      
Building and Improvements 24      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 24      
Accumulated Depreciation 18      
Book Value of Mortgaged Properties 0      
Seattle ISAP | Tukwila, WA        
SEC Schedule III, 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 50      
Book Value of Mortgaged Properties 0      
Sacramento, CA [Member] | Sacramento, CA [Member]        
SEC Schedule III, 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 16      
Book Value of Mortgaged Properties 0      
Las Vegas, NV ISAP | Las Vegas, NV        
SEC Schedule III, 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 4      
Book Value of Mortgaged Properties 0      
Bronx ISAP | Bronx, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 31      
Costs Capitalized Subsequent to Acquisition 40      
Land and Improvements 0      
Building and Improvements 71      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 71      
Accumulated Depreciation 47      
Book Value of Mortgaged Properties 0      
Manhattan ISAP | New York, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 10      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 20      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 20      
Accumulated Depreciation 16      
Book Value of Mortgaged Properties 0      
Queens ISAP | Jamaica, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 125      
Costs Capitalized Subsequent to Acquisition 7      
Land and Improvements 0      
Building and Improvements 132      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 132      
Accumulated Depreciation 79      
Book Value of Mortgaged Properties 0      
Boston ISAP | Burlington, MA        
SEC Schedule III, 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 52      
Book Value of Mortgaged Properties 0      
Hartford ISAP | Hartford, CT        
SEC Schedule III, 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 19      
Book Value of Mortgaged Properties 0      
Newark ISAP | Newark, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 29      
Costs Capitalized Subsequent to Acquisition 2      
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      
Marlton ISAP | Marlton, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 12      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 12      
Accumulated Depreciation 9      
Book Value of Mortgaged Properties 0      
Richmond, VA ISAP | Richmond, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 52      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 52      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 52      
Accumulated Depreciation 27      
Book Value of Mortgaged Properties 0      
Silver Spring, MD ISAP | Silver Springs, MD        
SEC Schedule III, 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 123      
Book Value of Mortgaged Properties 0      
Los Angeles ISAP | Los Angeles, CA        
SEC Schedule III, 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 62      
Book Value of Mortgaged Properties 0      
San Bernadino ISAP | San Bernadino, CA        
SEC Schedule III, 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      
Dallas ISAP | Dallas TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 17      
Costs Capitalized Subsequent to Acquisition 5      
Land and Improvements 0      
Building and Improvements 22      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 22      
Accumulated Depreciation 19      
Book Value of Mortgaged Properties 0      
El Paso ISAP | El Paso, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 2      
Costs Capitalized Subsequent to Acquisition 27      
Land and Improvements 0      
Building and Improvements 29      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 29      
Accumulated Depreciation 18      
Book Value of Mortgaged Properties 0      
Houston ISAP | Houston, TX        
SEC Schedule III, 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 30      
Book Value of Mortgaged Properties 0      
Phoenix ISAP | Phoenix, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 79      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 0      
Building and Improvements 79      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 79      
Accumulated Depreciation 50      
Book Value of Mortgaged Properties 0      
San Antonio ISAP | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 7      
Costs Capitalized Subsequent to Acquisition 50      
Land and Improvements 0      
Building and Improvements 57      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 57      
Accumulated Depreciation 38      
Book Value of Mortgaged Properties 0      
San Diego ISAP | San Diego, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 14      
Costs Capitalized Subsequent to Acquisition 10      
Land and Improvements 0      
Building and Improvements 24      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 24      
Accumulated Depreciation 13      
Book Value of Mortgaged Properties 0      
Bakersfield ISAP | Bakersfield, CA        
SEC Schedule III, 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      
Fresno, CA | Fresno, CA        
SEC Schedule III, 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 64      
Book Value of Mortgaged Properties 0      
Ventura C-Site | Camarillo, CA        
SEC Schedule III, 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 17      
Book Value of Mortgaged Properties 0      
SW Houston, TX ISAP | Houston, TX        
SEC Schedule III, 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      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 55      
Accumulated Depreciation 9      
Book Value of Mortgaged Properties 0      
Arthur Gorrie Correctional Centre | Bisbane, Queensland AUS        
SEC Schedule III, 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 119      
Book Value of Mortgaged Properties 0      
Fulham Correctional Centre & Fulham Nalu Challenge Community Unit | West Sale, Victoria AUS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 3,695      
Land and Improvements 0      
Building and Improvements 3,695      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,695      
Accumulated Depreciation 998      
Book Value of Mortgaged Properties 0      
Junee Correctional Centre | Junee, New South Wales, AUS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 1,145      
Land and Improvements 0      
Building and Improvements 1,145      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,145      
Accumulated Depreciation 873      
Book Value of Mortgaged Properties 0      
Parklea Correctional Centre | Parklea, New South Wales, AUS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 1,046      
Land and Improvements 0      
Building and Improvements 1,046      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 1,046      
Accumulated Depreciation 1,029      
Book Value of Mortgaged Properties 0      
Dungavel House Immigration Removal Centre | Louis Trichardt, South Africa        
SEC Schedule III, 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 88      
Book Value of Mortgaged Properties 0      
Kutama-Simthumle Correctional Centre | Louis Trichardt, South Africa        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 164      
Land and Improvements 0      
Building and Improvements 164      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 164      
Accumulated Depreciation 129      
Book Value of Mortgaged Properties 0      
Corporate Headquarters | Boca Raton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 1,072      
Costs Capitalized Subsequent to Acquisition 6,334      
Land and Improvements 0      
Building and Improvements 7,406      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 7,406      
Accumulated Depreciation 6,255      
Book Value of Mortgaged Properties 0      
New Corporate Headquarters - CIP | Boca Raton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 10,019      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 7,292      
Land and Improvements 10,019      
Building and Improvements 0      
Land Held for Development 0      
Development and Construction in Progress 7,292      
Total 17,311      
Accumulated Depreciation 0      
Book Value of Mortgaged Properties 0      
Central Regional Office | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 76      
Land and Improvements 0      
Building and Improvements 76      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 76      
Accumulated Depreciation 38      
Book Value of Mortgaged Properties 0      
Eastern Regional Office | Charlotte, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 23      
Land and Improvements 0      
Building and Improvements 23      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 23      
Accumulated Depreciation 11      
Book Value of Mortgaged Properties 0      
Western Regional Office | Los Angeles, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 22      
Costs Capitalized Subsequent to Acquisition 134      
Land and Improvements 0      
Building and Improvements 156      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 156      
Accumulated Depreciation 84      
Book Value of Mortgaged Properties 0      
Anderson, IN Call Center | Anderson, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 114      
Original Buildings and Improvements 5,259      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 114      
Building and Improvements 5,259      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 5,373      
Accumulated Depreciation 145      
Book Value of Mortgaged Properties 0      
Boulder, CO Point II | Boulder, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 3,289      
Costs Capitalized Subsequent to Acquisition (288)      
Land and Improvements 0      
Building and Improvements 3,001      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 3,001      
Accumulated Depreciation 546      
Book Value of Mortgaged Properties 0      
Protocol | Aurora, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 4      
Costs Capitalized Subsequent to Acquisition 228      
Land and Improvements 0      
Building and Improvements 233      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 233      
Accumulated Depreciation 85      
Book Value of Mortgaged Properties 0      
Sydney Office | Sydney, AUS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 0      
Original Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition 10,499      
Land and Improvements 0      
Building and Improvements 10,499      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 10,499      
Accumulated Depreciation 216      
Book Value of Mortgaged Properties 0      
Compton, CA Office Building | Compton, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 974      
Original Buildings and Improvements 1,546      
Costs Capitalized Subsequent to Acquisition 0      
Land and Improvements 974      
Building and Improvements 1,546      
Land Held for Development 0      
Development and Construction in Progress 0      
Total 2,520      
Accumulated Depreciation 43      
Book Value of Mortgaged Properties 0      
Miscellaneous Investments | Various        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Original Land 18,234      
Original Buildings and Improvements 4,455      
Costs Capitalized Subsequent to Acquisition 3,818      
Land and Improvements 1,201      
Building and Improvements 5,305      
Land Held for Development 18,439      
Development and Construction in Progress 1,563      
Total 26,508      
Accumulated Depreciation 2,916      
Book Value of Mortgaged Properties $ 0