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Quarterly Information (Unaudited) - Financial Results by Quarter (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Financial Data [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 389,100 | $ 392,900 | $ 401,900 | $ 421,200 | $ 435,500 | $ 438,000 | $ 473,100 | $ 490,000 |  |  |
Gross profit (loss) | (1,200) | (27,100) | (13,000) | 4,800 | 6,700 | (13,700) | (4,100) | (12,800) | $ (36,500) | $ (23,900) | $ (22,900)
Net income (loss) | (35,500) | (58,200) | (26,900) | (2,700) | (4,800) | (20,700) | (20,700) | (34,600) | (123,300) | (80,800) | (66,200)
Net income (loss) allocated to common stockholders | $ (35,500) | $ (58,200) | $ (26,900) | $ (2,700) | $ (4,800) | $ (20,700) | $ (20,700) | $ (34,600) | (123,300) | (80,800) | (66,200)
Basic earnings (loss) per share (in dollars per share) | $ (0.40) | $ (0.65) | $ (0.30) | $ (0.03) | $ (0.05) | $ (0.23) | $ (0.23) | $ (0.39) |  |  |
Diluted earnings (loss) per share (in dollars per share) | $ (0.40) | $ (0.65) | $ (0.30) | $ (0.03) | $ (0.05) | $ (0.23) | $ (0.23) | $ (0.39) |  |  |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  | (1,200) | $ 0 | $ 0
2021 Notes [Member] | Long-term Debt [Member] |  |  |  |  |  |  |  |  |  |  |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  | $ 1,200 |  |  |  |  |  |  | $ 1,200 |  |
BHH [Member] |  |  |  |  |  |  |  |  |  |  |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on sale of equity investments |  |  |  |  |  |  | $ 4,300 |  |  |  |

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