Reconciliation of Net Income to Adjusted EBITDA (Detail) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting [Abstract]
Net income		$ 101,861	$ 33,193	$ 82,464	$ 62,177	$ 135,054	$ 144,641
Add (deduct):
Income taxes		38,182		18,326		50,099	43,423
Interest expense	[1],[2]	24,929		28,466		50,070	55,581
Other (income) expense	[3]	(6,774)		836		(15,109)	(6,437)
Loss on debt amendments and refinancing							1,484
Other cash distributions from equity investees	[4]	5,323		3,932		19,665	16,255
Depreciation and amortization	[1]	64,573		64,290		129,035	128,685
Impairment of long-lived assets		12,494		2,788		18,078	3,379
Loss on disposal of assets and other		1,805		16,901		5,604	20,840
Non-cash rent expens	[5]	(1,331)				(2,150)
Deferred lease expenses	[1]			(449)			(932)
Amortization of long-term prepaid rents	[1]			597			1,236
Share based awards compensation expense		3,676		3,452		6,646	6,878
Adjusted EBITDA	[1]	$ 244,738		$ 221,603		$ 396,992	$ 415,033

[1] Amounts for the three and six months ended June 30, 2019 were impacted by the adoption of ASC Topic 842 and the resulting change in the classification of certain of the Company’s leases

[2] Includes amortization of debt issue costs.

[3] Includes interest income, foreign currency exchange loss, equity in income of affiliates and interest expense - NCM and excludes distributions from NCM.

[4] Includes cash distributions received from equity investees that were recorded as a reduction of the respective investment balances (see Notes 8 and 9).  These distributions are reported entirely within the U.S. operating segment.

[5] The adoption of ASC Topic 842 impacted how the Company amortizes lease related assets and liabilities such as deferred lease expenses, favorable and unfavorable lease intangible assets, long-term prepaid rents and deferred lease incentives.  Beginning January 1, 2019, these items are amortized to facility lease expense for theatre operating leases and utilities and other for equipment operating leases.  See Note 3 for discussion of the impact of ASC Topic 842