Debt - Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Finance lease liabilities, noncurrent	$ 4,079
Capital lease obligations, noncurrent		$ 4,530
Total	569,079	569,530
Net unamortized discounts and issuance costs	(9,547)	(9,709)
Total long-term debt	559,532	559,821
Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	0	0
Term Loan Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 265,000	$ 265,000
Senior Notes \| 6.375% Senior Notes Due May 2026
Debt Instrument [Line Items]
Debt interest rate	6.375%	6.375%
Long-term debt, gross	$ 300,000	$ 300,000

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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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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Contractual interest rate for funds borrowed, under the debt agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

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Amount of long-term debt and lease obligation, including portion classified as current.

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