Summary Financial Information for Digital Cinema Implementation Partners (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Schedule of Equity Method Investments [Line Items]
Operating income	$ 135,192	$ 94,153	$ 334,838	$ 297,550
Net income	80,745	47,967	134,644	142,982
Digital Cinema Implementation Partners LLC
Schedule of Equity Method Investments [Line Items]
Revenues	46,321		134,398
Operating income	29,748		85,274
Net income	$ 16,530		$ 30,793