Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Right-of-use finance lease assets	$ 1,613
Property and equipment, gross	4,797,870	$ 4,688,518
Accumulated depreciation	(1,666,505)	(1,539,423)
Property and equipment, net	3,131,365	3,149,095
Land and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	348,867	347,654
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,427,468	3,379,041
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	963,901	913,528
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 56,021	$ 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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