Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,067,857	$ 1,110,689
Accumulated depreciation	(571,198)	(588,565)
Property, plant and equipment, net	496,659	522,124
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	144,491	149,295
Production Machinery and Technical Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	867,347	899,764
Leasehold Improvements and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	14,470	14,912
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 41,549	$ 46,718