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Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Lessee Lease Description [Line Items]
Operating lease, cost	$ 78,261		$ 233,427
Variable lease, cost	19,030		55,047
(Gain) loss on disposition of assets	(199)	$ 407	(5,360)	$ 7,265
Operating lease, cash payments			262,327
Direct advertising expenses (exclusive of depreciation and amortization)	$ 148,846	$ 140,699	$ 435,706	$ 419,776
Operating lease, weighted average remaining lease term	12 years 2 months 12 days		12 years 2 months 12 days
Operating lease, weighted average discount rate	4.85%		4.85%
Leased assets obtained in exchange for operating lease liability			$ 31,620
Advertising [Member]
Lessee Lease Description [Line Items]
Direct advertising expenses (exclusive of depreciation and amortization)	$ 1,131		3,357
Termination of Lease Agreements [Member]
Lessee Lease Description [Line Items]
(Gain) loss on disposition of assets	$ 36		$ (3,875)

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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