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Quarterly Financial Data (Unaudited) (Details) - USD ($)
 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 Information Disclosure [Abstract]                      
Revenue $ 96,348,000 $ 84,417,000 $ 86,101,000 $ 123,492,000 $ 139,441,000 $ 140,417,000 $ 155,654,000 $ 144,408,000 $ 390,358,000 $ 579,920,000 $ 522,493,000
Gross profit (loss) 1,252,000 (616,000) 809,000 12,622,000 16,357,000 20,825,000 25,062,000 19,102,000 14,067,000 81,346,000  
Operating loss (17,652,000) (23,746,000) (27,286,000) (94,208,000) (165,279,000) (14,803,000) (12,514,000) (20,294,000) (162,892,000) (212,890,000) (92,881,000)
Net loss $ (8,206,000) $ (27,791,000) $ (34,245,000) $ (85,978,000) $ (168,093,000) $ (23,789,000) $ (15,160,000) $ (28,287,000) $ (156,220,000) $ (235,329,000) $ (90,733,000)
Loss per common share:                      
Basic and diluted (in USD per share) $ (0.04) $ (0.12) $ (0.15) $ (0.38) $ (0.75) $ (0.11) $ (0.07) $ (0.13) $ (0.69) $ (1.05) $ (0.41)
Goodwill impairment       $ 57,100,000 $ 111,100,000       $ 57,146,000 $ 111,108,000 $ 0
Fixed asset impairment       15,500,000 28,800,000       15,664,000 32,916,000 0
Inventory impairments         4,200,000       367,000 4,471,000 0
Intangible asset impairments       $ 4,700,000 $ 3,300,000       $ 4,708,000 $ 3,299,000 $ 0