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Business Acquisition (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 11, 2019
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Business Acquisition [Line Items]          
Net sales     $ 238,263   $ 461,660
Net income     8,625   17,370
Net sales   $ 157,785 238,263 $ 371,796 456,641
Payments to acquire businesses, gross $ 365,000     $ 3,800  
Buffalo Filter LLC          
Business Acquisition [Line Items]          
Net sales     13,500   19,500
Pro Forma | Acquisition-related Costs | Cost of Sales          
Business Acquisition [Line Items]          
Business acquisition costs     500   1,200
Pro Forma | Acquisition-related Costs | Selling and Administrative Expenses          
Business Acquisition [Line Items]          
Business acquisition costs     $ 2,500   $ 9,700