Summary of Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 1,277,383	[1]
Acquisition of Brazil theatre	356
Foreign currency translation adjustments	(25,449)
Ending Balance	1,252,290	[1]
U.S. Operating Segment
Goodwill [Line Items]
Beginning Balance	1,156,556	[1]
Ending Balance	1,156,556	[1]
International Operating Segment
Goodwill [Line Items]
Beginning Balance	120,827	[1]
Acquisition of Brazil theatre	356
Foreign currency translation adjustments	(25,449)
Ending Balance	$ 95,734	[1]

[1] Balances are presented net of accumulated impairment losses of $214,031 for the U.S. operating segment and $27,622 for the international operating segment.