Summary of Activity with NCM Included in Company's Consolidated Financial Statements (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule Of Equity Method Investments [Line Items]
Receipt of common units due to annual common unit adjustment ("CUA")				$ 1,552
Equity in earnings		$ 8,439	$ 6,414	18,843	$ 15,050
NCM
Schedule Of Equity Method Investments [Line Items]
Beginning Balance				275,592
Beginning Balance				(287,349)
Equity in earnings		617	$ 495	5,012	$ 4,511
Ending Balance		268,709		268,709
Ending Balance		(280,964)		(280,964)
Investment In NCM
Schedule Of Equity Method Investments [Line Items]
Beginning Balance				275,592
Receipt of common units due to annual common unit adjustment ("CUA")				1,552
Receipt of excess cash distributions				(11,123)
Receipt of cash under tax receivable agreement				(2,324)
Equity in earnings				5,012
Ending Balance		268,709		268,709
Deferred Revenue
Schedule Of Equity Method Investments [Line Items]
Beginning Balance				(287,349)
Receipt of common units due to annual common unit adjustment ("CUA")				(1,552)
Ending Balance		(280,964)		(280,964)
Deferred Revenue | NCM
Schedule Of Equity Method Investments [Line Items]
Receipt of common units due to annual common unit adjustment ("CUA")				1,552
Amortization of deferred revenue				7,937
Distributions from NCM
Schedule Of Equity Method Investments [Line Items]
Receipt of excess cash distributions				(5,535)
Receipt of cash under tax receivable agreement				(1,159)
Ending Balance		(6,694)		(6,694)
Equity in Earnings
Schedule Of Equity Method Investments [Line Items]
Ending Balance		(5,012)		(5,012)
Equity in Earnings | NCM
Schedule Of Equity Method Investments [Line Items]
Equity in earnings				(5,012)
Other Revenue
Schedule Of Equity Method Investments [Line Items]
Revenues earned under ESA	[1],[2]			(15,754)
Total Revenues		(23,691)		(23,691)
Other Revenue | NCM
Schedule Of Equity Method Investments [Line Items]
Amortization of deferred revenue				(7,937)
Interest Expense - NCM
Schedule Of Equity Method Investments [Line Items]
Revenues earned under ESA	[1],[2]			9,514
Ending Balance	[2]	9,514		9,514
Cash Received (Paid)
Schedule Of Equity Method Investments [Line Items]
Revenues earned under ESA	[1],[2]			6,240
Receipt of excess cash distributions				16,658
Receipt of cash under tax receivable agreement				3,483
Total Cash Received		$ 26,381		$ 26,381

[1] Amount includes the per patron and per digital screen theatre access fees due to the Company, net of amounts paid to NCM for on-screen advertising time provided to the Company’s beverage concessionaire of approximately $5,884.

[2] Reflects impact of significant financing component related to amounts received in advance under the ESA and CUA agreements.  See Note 4.