Schedule of Debt Outstanding (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total debt	$ 1,922,167	$ 1,814,795
Unamortized debt issuance costs	(11,897)	(13,119)
Current portion of long-term debt, net	(341,152)	(14,121)
Long-term debt, net	1,569,118	1,787,555
Term Loan
Debt Instrument [Line Items]
Total debt	195,000	197,500
Unamortized debt issuance costs	(100)	(100)
Senior Notes 4.625%
Debt Instrument [Line Items]
Total debt	350,000	350,000
Unamortized debt issuance costs	(2,400)	(2,700)
Senior Notes 4.125%
Debt Instrument [Line Items]
Total debt	325,000	325,000
Unamortized debt issuance costs	(600)	(1,000)
Senior Notes 5.0%
Debt Instrument [Line Items]
Total debt	250,000	250,000
Unamortized debt issuance costs	(1,600)	(1,800)
Senior Notes 4.75%
Debt Instrument [Line Items]
Total debt	250,000	250,000
Unamortized debt issuance costs	(3,300)	(3,500)
Capital Commerce Center Non-Recourse Mortgage Note 4.5%
Debt Instrument [Line Items]
Total debt	22,826	23,429
Unamortized debt issuance costs	(300)	(300)
Lansing Correctional Center Non Recourse Mortgage Note 4.43%
Debt Instrument [Line Items]
Total debt	124,475	62,331
Unamortized debt issuance costs	(3,400)	(3,400)
SSA Baltimore Non Recourse Mortgage Note 4.5%
Debt Instrument [Line Items]
Total debt	152,866	155,535
Unamortized debt issuance costs	(200)	(300)
Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	$ 252,000	$ 201,000