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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