Summary Financial Information for DCIP (Detail) - Digital Cinema Implementation Partners - Other Affiliates - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Equity Method Investments [Line Items]
Revenues	$ 44,757	$ 39,852	$ 85,401	$ 80,593
Operating income	27,788	22,996	51,189	46,760
Net income	$ 22,276	$ 16,521	$ 40,778	$ 33,965