Idled Facilities and Respective Carrying Values Excluding Equipment and Other Assets (Detail) $ in Thousands		9 Months Ended
		Sep. 30, 2016 USD ($) Bed	Jun. 10, 2016 Bed	Dec. 31, 2015 USD ($)
Facility Activations Developments And Closures [Line Items]
Design Capacity		89,300	112
Prairie Correctional Facility
Facility Activations Developments And Closures [Line Items]
Design Capacity		1,600
Date Idled		2010
Net Carrying Value | $		$ 17,358		$ 17,961
Huerfano County Correctional Center
Facility Activations Developments And Closures [Line Items]
Design Capacity		752
Date Idled		2010
Net Carrying Value | $		$ 17,718		18,276
Diamondback Correctional Facility
Facility Activations Developments And Closures [Line Items]
Design Capacity		2,160
Date Idled		2010
Net Carrying Value | $		$ 41,914		43,030
Southeast Kentucky Correctional Facility
Facility Activations Developments And Closures [Line Items]
Design Capacity	[1]	656
Date Idled	[1]	2012
Net Carrying Value | $	[1]	$ 22,820		23,270
Marion Adjustment Center
Facility Activations Developments And Closures [Line Items]
Design Capacity		826
Date Idled		2013
Net Carrying Value | $		$ 12,238		12,536
Lee Adjustment Center
Facility Activations Developments And Closures [Line Items]
Design Capacity		816
Date Idled		2015
Net Carrying Value | $		$ 10,466		10,840
Kit Carson Correctional Center
Facility Activations Developments And Closures [Line Items]
Design Capacity		1,488
Date Idled		2016
Net Carrying Value | $		$ 58,884		60,039
Idle Facilities
Facility Activations Developments And Closures [Line Items]
Design Capacity		8,298
Net Carrying Value | $		$ 181,398		$ 185,952

[1] Formerly known as the Otter Creek Correctional Center.