Idled Facilities and Respective Carrying Values Excluding Equipment and Other Assets (Detail) $ in Thousands	6 Months Ended
	Jun. 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 | $	$ 17,661		$ 17,961
Huerfano County Correctional Center
Facility Activations Developments And Closures [Line Items]
Design Capacity	752
Date Idled	2010
Net Carrying Value | $	$ 17,903		18,276
Diamondback Correctional Facility
Facility Activations Developments And Closures [Line Items]
Design Capacity	2,160
Date Idled	2010
Net Carrying Value | $	$ 42,288		43,030
Otter Creek Correctional Center
Facility Activations Developments And Closures [Line Items]
Design Capacity	656
Date Idled	2012
Net Carrying Value | $	$ 23,002		23,270
Marion Adjustment Center
Facility Activations Developments And Closures [Line Items]
Design Capacity	826
Date Idled	2013
Net Carrying Value | $	$ 12,345		12,536
Lee Adjustment Center
Facility Activations Developments And Closures [Line Items]
Design Capacity	816
Date Idled	2015
Net Carrying Value | $	$ 10,591		10,840
Idle Facilities
Facility Activations Developments And Closures [Line Items]
Design Capacity	6,810
Net Carrying Value | $	$ 123,790		$ 125,913