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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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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.

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Property and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property and Equipment, net
Property and equipment, gross	$ 622,922	$ 532,603
Less: accumulated depreciation and amortization	(255,024)	(218,229)
Property and equipment, net	367,898	314,374
Depreciation expense	47,400	54,700	$ 44,800
Land
Property and Equipment, net
Property and equipment, gross	47,780	36,069
Buildings and improvements
Property and Equipment, net
Property and equipment, gross	99,739	64,860
Leasehold improvements
Property and Equipment, net
Property and equipment, gross	210,396	174,417
Furniture and equipment
Property and Equipment, net
Property and equipment, gross	180,191	181,539
Software
Property and Equipment, net
Property and equipment, gross	73,256	67,086
Systems development and construction in progress
Property and Equipment, net
Property and equipment, gross	$ 11,560	$ 8,632