Business Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Feb. 11, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
Net sales			$ 233,590		$ 695,250
Net income			8,675		26,045
Net sales		$ 237,835	233,590	$ 609,631	690,232
Payments to acquire businesses, gross	$ 365,000			$ 3,800
Buffalo Filter LLC
Business Acquisition [Line Items]
Net sales			13,900		33,400
Pro Forma | Acquisition-related Costs | Cost of Sales
Business Acquisition [Line Items]
Business acquisition costs			200		1,300
Pro Forma | Acquisition-related Costs | Selling and Administrative Expenses
Business Acquisition [Line Items]
Business acquisition costs			$ 1,500		$ 11,200