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v3.20.4

Summary of Significant Accounting Policies Revenue, Initial Application Period Cumulative Effect Transition (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
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 374,629 | $ 475,559 | $ 296,996 | $ 442,276 | $ 311,941 | $ 426,217 | $ 446,708 | $ 516,197 | $ 1,589,460 | $ 1,701,063 | $ 1,242,834
Accounts receivable, net | 138,482 |  |  |  | 140,455 |  |  |  | 138,482 | 140,455 |
Other current assets | 54,853 |  |  |  | 75,671 |  |  |  | 54,853 | 75,671 |
Income taxes payable | 5,908 |  |  |  | 12,104 |  |  |  | 5,908 | 12,104 |
Retained Earnings (Accumulated Deficit) | (360,228) |  |  |  | (489,382) |  |  |  | (360,228) | (489,382) |
Income tax (benefit) provision |  |  |  |  |  |  |  |  | (544) | 16,540 | 26,018
Net Income (Loss) Attributable to Parent | $ (40,576) | $ 52,432 | $ (167,684) | $ 28,894 | $ (29,218) | $ 31,048 | $ 28,931 | $ 48,647 | $ (126,934) | $ 79,408 | $ 104,740

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