Summary of Goodwill (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018
Goodwill [Line Items]
Beginning Balance	[1]	$ 1,276,324		$ 1,284,079
Acquisition of theatres		9,680	[2]	7,204	[3]
Foreign currency translation adjustments		(2,633)		(14,959)
Ending Balance	[1]	1,283,371		1,276,324
U.S. Operating Segment
Goodwill [Line Items]
Beginning Balance	[1]	1,174,041		1,174,041
Acquisition of theatres	[2]	8,812
Ending Balance	[1]	1,182,853		1,174,041
International Operating Segment
Goodwill [Line Items]
Beginning Balance	[1]	102,283		110,038
Acquisition of theatres		868	[2]	7,204	[3]
Foreign currency translation adjustments		(2,633)		(14,959)
Ending Balance	[1]	$ 100,518		$ 102,283

[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] Amounts represent acquisition of two theatres in the U.S. and final purchase price adjustment for theatres acquired in Brazil during the year ended December 31, 2018.

[3] Amount represents preliminary purchase price allocation for theatres acquired in Brazil.