Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 462,604	$ 410,261
Less: accumulated depreciation	(210,959)	(179,920)
Property and equipment, net	251,645	230,341
Depreciation expense	36,400	44,500	$ 26,600
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	37,578	33,700
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	76,406	63,016
Furniture, fixtures, equipment and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 348,620	$ 313,545

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 expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

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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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