General - Long-Term Debt, Finance Lease and Deferred Financing Obligations - Tabular Disclosure (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt and finance lease obligations
Senior Notes	$ 359,656	$ 359,632
Term loan	158,750	263,125
Other loan	2,154	2,154
Finance leases	15,238	16,400
Deferred loan costs	(3,861)	(4,192)
Total debt and finance lease obligations	533,225	638,376
Land and equipment
Debt and finance lease obligations
Finance leases	15,238	16,359
Software as a service
Debt and finance lease obligations
Finance leases	$ 1,288	$ 1,298

Amount of short-term and long-term debt and lease obligation.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt classified as other.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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