Long-Term Debt - Schedule of Long-Term Debt Outstanding (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt	$ 265,602	$ 275,730
Less unamortized discount	(246)	(402)
Total, net of unamortized discount	265,356	275,328
Less current obligations	(22,157)	(20,000)
Long-term debt	243,199	255,328
Mortgage debt
Debt Instrument [Line Items]
Long-term debt	8,596	8,712
Other
Debt Instrument [Line Items]
Long-term debt	249	261
Senior Secured Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Long-term debt	209,600	209,600
Second-Out Term Loan \| Secured Debt
Debt Instrument [Line Items]
Long-term debt	45,000	55,000
PPP loan \| PPP loan
Debt Instrument [Line Items]
Long-term debt	$ 2,157	$ 2,157

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 accumulated amortization, of debt discount.

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

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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