Debt - Summary of Debt and Capital Lease Obligations (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Total Debt	$ 1,493,632	$ 1,431,710
Less amounts due within one year	(19)	(6,019)
Total long-term debt	1,493,613	1,425,691
$400 Million Term Loan B [Member]
Debt Instrument [Line Items]
Total Debt	386,135	387,543
$350 Million 5% Senior Notes [Member]
Debt Instrument [Line Items]
Total Debt	345,324	344,893
$400 Million 5% Senior Notes [Member]
Debt Instrument [Line Items]
Total Debt	393,906	393,531
AC Hotel Note Payable [Member]
Debt Instrument [Line Items]
Total Debt		6,000	$ 6,000
$700 Million Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total Debt	367,599	299,065
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Total Debt	$ 668	$ 678