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Revenue and Accounts Receivable, Net - Pattern of Revenue Recognition (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Net sales $ 156,264 $ 153,505 $ 153,133 $ 151,778 $ 174,694 $ 200,724 $ 193,896 $ 184,163 $ 614,680 $ 753,477 $ 680,241
Goods and services transferred at a point in time                      
Net sales                 495,033 558,361 577,085
Goods and services transferred over time                      
Net sales                 $ 119,647 $ 195,116 $ 103,156