Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Property, plant and equipment
Property, plant and equipment, gross	$ 700,096	$ 679,213
Less: accumulated depreciation	(338,289)	(317,045)
Total property, plant and equipment, net	361,807	362,168
Land
Property, plant and equipment
Property, plant and equipment, gross	6,560	6,560
Building and Improvements
Property, plant and equipment
Property, plant and equipment, gross	178,193	177,087
Furniture, Fixtures and Equipment
Property, plant and equipment
Property, plant and equipment, gross	348,798	340,146
Leasehold Improvements
Property, plant and equipment
Property, plant and equipment, gross	52,327	20,737
Construction in Progress
Property, plant and equipment
Property, plant and equipment, gross	$ 114,218	$ 134,683

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.

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