Business Segments - Net Sales and Long-Lived Assets by Location (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 347,464	$ 144,835	$ 705,660	$ 445,947
Property, Plant and Equipment, net	503,086		503,086		$ 522,124
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	1,549	3,619	2,819	19,796
Property, Plant and Equipment, net	4,343		4,343		7,324
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	175,441	55,297	366,142	194,671
Property, Plant and Equipment, net	204,673		204,673		212,821
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	62,511	33,726	123,398	83,764
Property, Plant and Equipment, net	82,527		82,527		82,162
Poland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	107,963	$ 52,193	213,301	$ 147,716
Property, Plant and Equipment, net	$ 211,543		$ 211,543		$ 219,817