This goodwill was established in connection with the acquisitions of Correctional Management, Inc. ("CMI") in the second quarter of 2016 and Avalon Correctional Services, Inc. ("Avalon") in the fourth quarter of 2015, both as further described in Note 6, the acquisition of Correctional Alternatives, Inc. ("CAI") during 2013, and the acquisitions of two service companies during 2000.

$ 0

Goodwill and Intangible Assets Disclosure [Line Items]

Goodwill - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
Goodwill - Additional Information (Detail) - USD ($)	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Line Items]
Establishment of goodwill		This goodwill was established in connection with the acquisitions of Correctional Management, Inc. ("CMI") in the second quarter of 2016 and Avalon Correctional Services, Inc. ("Avalon") in the fourth quarter of 2015, both as further described in Note 6, the acquisition of Correctional Alternatives, Inc. ("CAI") during 2013, and the acquisitions of two service companies during 2000.
Goodwill		$ 38,386,000	$ 35,557,000
Goodwill impairment charges		$ 0
Winn Correctional Center
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill impairment charges	$ 1,000,000