Supplemental Financial Information (Schedule Of Leasehold Improvements, Property And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Supplemental Financial Information [Abstract]
Land	$ 12,943	$ 12,943
Leasehold improvements and buildings	1,677,294	1,572,606
Furniture and fixtures	166,915	157,541
Equipment	460,138	405,937
Leasehold improvements, property and equipment, gross	2,317,290	2,149,027
Accumulated depreciation	(978,924)	(845,469)
Leasehold improvements, property and equipment, net	$ 1,338,366	$ 1,303,558

Supplemental Financial Information [Abstract]

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depreciation of fixtures and equipment. Includes, but is not limited to, machinery, equipment, and engines.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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