Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Right-of-use finance lease assets	$ 1,551
Property and equipment, gross	4,757,918	$ 4,688,518
Accumulated depreciation	(1,623,712)	(1,539,423)
Property and equipment, net	3,134,206	3,149,095
Land and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	347,834	347,654
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,416,455	3,379,041
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	953,797	913,528
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 38,281	$ 48,295

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 of lessee's right to use underlying asset under finance lease.

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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.

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