Business Segment Information - Summary of Net Sales by Geographic Destination (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 406,562	$ 459,955	$ 453,042
U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	327,280	361,939	355,353
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	18,733	19,560	19,331
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	11,940	12,688	11,606
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	7,147	10,090	8,731
Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,347	7,685	7,120
Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 39,115	$ 47,993	$ 50,901