Summary Financial Information for DCIP (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 29, 2011	Dec. 30, 2010
Schedule of Equity Method Investments [Line Items]
Net operating revenue	$ 611,534	$ 633,573	$ 649,606	$ 578,818	$ 535,871	$ 640,013	$ 620,593	$ 483,136	$ 2,473,531	$ 2,279,613	$ 2,141,144
Operating income	86,152	94,153	113,909	89,488	61,467	101,310	97,001	48,756	383,702	308,534	292,869
Net loss									171,420	132,582	149,663
Total assets	3,863,226				3,522,408				3,863,226	3,522,408		421,442	425,972
Total liabilities												948,938	932,549
Digital Cinema Implementation Partners LLC
Schedule of Equity Method Investments [Line Items]
Net operating revenue										113,424	32,396
Operating income										70,508	12,817
Net loss										(2,510)	(24,461)
Total assets					1,087,782					1,087,782	532,133
Total liabilities					$ 997,735					$ 997,735	$ 468,191