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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, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Net sales $ 174,694 $ 200,724 $ 193,896 $ 184,163 $ 170,303 $ 182,717 $ 162,523 $ 164,698 $ 753,477 $ 680,241 $ 695,790
Goods and services transferred at a point in time                      
Net sales                 558,361 577,085  
Goods and services transferred over time                      
Net sales                 $ 195,116 $ 103,156