Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Feb. 28, 2014	Mar. 31, 2014 LegalMatter Bed	Mar. 31, 2014 Hardeman County Correctional Facilities Corporation	Dec. 31, 1997 Hardeman County Correctional Facilities Corporation Facility
Loss Contingencies [Line Items]
Compensation amount on contractual disputes	$ (1)
Number of pending legal proceedings that would have an effect on consolidated financial position, results of operations, or cash flows		0
Issuance of revenue bonds				72.7
Number of beds at the facility		86,500		2,016
Outstanding principal balance of revenue bonds			23.9
Outstanding principal balance of the bonds exceeded the purchase price option			$ 9.4