Summary of Significant Accounting Policies - Narrative (Details)			12 Months Ended
	Jun. 01, 2021	May 31, 2021	Dec. 31, 2021 USD ($) numberOfEntities customer	Dec. 31, 2020 USD ($) customer	Dec. 31, 2019 USD ($) customer	Oct. 31, 2021	Jul. 31, 2021
Schedule of Accounting Policies [Line Items]
Number of Veriable Interes Entities | numberOfEntities			2
Percent of increase in starting wages for production workforce							7.00%
Percent of cost of living increase						3.50%
Cash and cash equivalents			$ 2,859,000	$ 79,025,000
Indefinite-lived intangible assets			19,700,000
Research and development costs			16,600,000	17,400,000	$ 14,800,000
Advertising expense			1,600,000	800,000	800,000
Cost of sales			396,687,000	358,702,000	349,908,000
Vesting percentage	33.30%	20.00%
Payments to representatives			$ 43,900,000	50,000,000	46,100,000
Extended product warranties, minimum length			6 months
Extended product warranties, maximum length			10 years
Minimum
Schedule of Accounting Policies [Line Items]
Requisite service period			1 year
Shipping and Handling
Schedule of Accounting Policies [Line Items]
Cost of sales			$ 14,400,000	$ 14,300,000	$ 14,400,000
Foreign Sales Revenue, Net | Customer Concentration Risk | Large Crude Oil Refining Customers
Schedule of Accounting Policies [Line Items]
Concentration risk, percentage			3.00%	2.00%	3.00%
Sales Revenue, Net
Schedule of Accounting Policies [Line Items]
Number of major customers | customer			1	1	1
Accounts Receivable
Schedule of Accounting Policies [Line Items]
Number of major customers | customer			0
Certificates of Deposit
Schedule of Accounting Policies [Line Items]
Cash and cash equivalents			$ 0	$ 0