Supplemental Balance Sheet Information (Schedule Of Leasehold Improvements, Property And Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	$ 3,305,601	$ 2,964,021
Accumulated depreciation	(1,536,323)	(1,379,710)
Leasehold improvements, property and equipment, net	1,769,278	1,584,311
Land [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	12,943	12,943
Leasehold Improvements and Buildings [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	2,094,227	1,921,371
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	222,774	198,387
Equipment [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	868,435	755,003
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements, property and equipment, gross	$ 107,222	$ 76,317

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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