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Severance and Other Charges (Credits), net - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring and Related Activities [Abstract]          
Outstanding liability on severance and other costs   $ 5,837,000 $ 2,666,000 $ 5,837,000  
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
Accounts receivable write-off (recovery)     $ 0 $ 0 $ (4,862,000)