Property and Equipment, Net - Property and Equipment Table (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 500,280	$ 496,020
Less: Accumulated depreciation	249,130	242,960
Property and equipment, net	251,150	253,060
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	19,810	20,040
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	91,080	91,970
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 389,390	$ 384,010