Transactions with DCIP (Detail) - Digital Cinema Implementation Partners - 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]
Equipment lease payments	$ 1,406	$ 1,039	$ 2,531	$ 2,049
Warranty reimbursements from DCIP	(1,435)	(1,030)	(2,759)	(1,987)
Management services fees	$ 206	$ 207	$ 412	$ 414