Screenvision Exhibition, Inc. - Summary of Changes in Investments in Unconsolidated Affiliates and Deferred Revenue (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Balance at January 1, 2016	$ 8,033
Balance at March 31, 2016	7,816
SV Holdco, LLC [Member]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Balance at January 1, 2016	6,957
Equity loss of SV Holdco	177
Balance at March 31, 2016	6,780
Movement in Deferred Revenue [Roll Forward]
Balance at January 1, 2016	30,670
Amortization of up-front payment	(237)
Amortization of Class C units	(53)
Balance at March 31, 2016	$ 30,380