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Revenue - Narratives (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disaggregation of Revenue |  |
Total net sales (Note 4) | $ 513,620 | $ 497,411
Contract with customer, assets | 36,179 | 37,843
Contract liabilities | 3,235 | 1,324
Contract assets transferred to receivables | 24,501 | 27,126
Cash proceeds from liability contract | 3,245 | 803
Revenue recognized from contract liability | 917 | 3,784
Deferred revenue | $ 13,411 | $ 7,144
Over time |  |
Disaggregation of Revenue |  |
Customer revenue transferred (percentage) | 29.90% | 29.40%
Total net sales (Note 4) | $ 153,631 | $ 146,020
Over time | Performance Based |  |
Disaggregation of Revenue |  |
Total net sales (Note 4) | 100,787 | 101,160
Over time | Delivery Based |  |
Disaggregation of Revenue |  |
Total net sales (Note 4) | $ 52,844 | $ 44,860
Point in time |  |
Disaggregation of Revenue |  |
Customer revenue transferred (percentage) | 70.10% | 70.60%
Total net sales (Note 4) | $ 359,989 | $ 351,391

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