Financing Arrangements - Schedule of Financing Arrangements (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 91,383	$ 172,164
Unamortized discount and debt issuance costs	(4,221)	(12,291)
Long-term debt	87,162	159,873
Long-term debt, current maturities, gross	(71,693)	(6,335)
Unamortized discount and debt issuance costs, current	4,221	0
Long-term debt, current maturities	(67,472)	(6,335)
Long-term debt, excluding current maturities, gross	19,690	165,829
Unamortized discount and debt issuance costs, noncurrent	0	(12,291)
Long-term debt, excluding current maturities	19,690	153,538
Other debt
Debt Instrument [Line Items]
Long-term debt, gross	5,371	7,164
Unamortized discount and debt issuance costs	0	0
Long-term debt	5,371	7,164
Revolving credit facility | ABL Facility
Debt Instrument [Line Items]
Long-term debt, gross	19,100	65,000
Unamortized discount and debt issuance costs	0	0
Long-term debt	19,100	65,000
Senior notes | Convertible Notes
Debt Instrument [Line Items]
Long-term debt, gross	66,912	100,000
Unamortized discount and debt issuance costs	(4,221)	(12,291)
Long-term debt	$ 62,691	$ 87,709