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Goodwill - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Establishment of goodwill | This goodwill was established in connection with the acquisition of Avalon Correctional Services, Inc. ("Avalon") in the fourth quarter of 2015, as further described in Note 5, the acquisition of Correctional Alternatives, Inc. during 2013, and the acquisitions of two service companies during 2000. |
Goodwill | $ 35,001 | $ 35,557

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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