Property and Equipment (Property and Equipment, Including Original Useful Lives) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Property and Equipment
Property and equipment	$ 5,645,552	$ 5,191,135
Less: accumulated depreciation and amortization	2,058,550	1,847,329
Net property and equipment	3,587,002	3,343,806
Land [Member]
Property and Equipment
Property and equipment	745,050	695,669
Buildings and building improvements [Member]
Property and Equipment
Property and equipment	$ 2,147,969	1,968,079
Buildings and building improvements [Member] \| Minimum [Member]
Property and Equipment
Property and equipment, useful lives	15 years
Buildings and building improvements [Member] \| Maximum [Member]
Property and Equipment
Property and equipment, useful lives	39 years
Leasehold improvements [Member]
Property and Equipment
Property and equipment	$ 686,058	626,714
Leasehold improvements [Member] \| Minimum [Member]
Property and Equipment
Property and equipment, useful lives	3 years
Leasehold improvements [Member] \| Maximum [Member]
Property and Equipment
Property and equipment, useful lives	25 years
Furniture, fixtures and equipment [Member]
Property and Equipment
Property and equipment	$ 1,350,808	1,250,690
Furniture, fixtures and equipment [Member] \| Minimum [Member]
Property and Equipment
Property and equipment, useful lives	3 years
Furniture, fixtures and equipment [Member] \| Maximum [Member]
Property and Equipment
Property and equipment, useful lives	20 years
Vehicles [Member]
Property and Equipment
Property and equipment	$ 424,421	392,130
Vehicles [Member] \| Minimum [Member]
Property and Equipment
Property and equipment, useful lives	5 years
Vehicles [Member] \| Maximum [Member]
Property and Equipment
Property and equipment, useful lives	10 years
Construction in Progress [Member]
Property and Equipment
Property and equipment	$ 291,246	$ 257,853

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, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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