Summary of Goodwill (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 1,276,324	[1]
Theatres acquired in Brazil	869	[2]
Foreign currency translation adjustments	(440)
Ending Balance	1,276,753	[1]
U.S. Operating Segment
Goodwill [Line Items]
Beginning Balance	1,174,041	[1]
Ending Balance	1,174,041	[1]
International Operating Segment
Goodwill [Line Items]
Beginning Balance	102,283	[1]
Theatres acquired in Brazil	869	[2]
Foreign currency translation adjustments	(440)
Ending Balance	$ 102,712	[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.

[2] Amount represents purchase price allocation adjustment for theatres acquired in Brazil during 2018.