Screenvision Exhibition, Inc. - Summary of Changes in Investments in Unconsolidated Affiliates and Deferred Revenue (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Balance at January 1, 2016	$ 8,033
Balance at June 30, 2016	8,333
SV Holdco, LLC [Member]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Balance at January 1, 2016	6,957
Equity income of SV Holdco	328
Balance at June 30, 2016	7,285
Movement in Deferred Revenue [Roll Forward]
Balance at January 1, 2016	30,670
Theatre acquisition bonus	2,047
Amortization of up-front payment	(480)
Amortization of Class C units	(106)
Balance at June 30, 2016	$ 32,131