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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 |  |  |

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