Long-Term Debt Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Net carrying amount of liability component	$ 123,258	$ 121,686
Other debt	55	55
Less: current maturities	0	0
Long-term debt	123,258	121,686
Senior Notes
Debt Instrument [Line Items]
Long-term debt	143,750	143,750
Less: debt discount and issuance costs, net	(20,492)	(22,064)
Net carrying amount of liability component	123,258	121,686
Equity component of exchangeable notes, net of issuance costs	$ (26,699)	$ (26,699)
Debt instrument, interest rate, stated percentage	4.50%	4.50%
Loans Payable
Debt Instrument [Line Items]
Other debt	$ 0	$ 0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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