Long-term Debt and Financing Arrangements - Total Outstanding Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 272,641	$ 324,813
Less portion due within one year	(9,928)	(10,172)
Total long-term debt, net of debt issuance costs	$ 262,713	314,641
Revolver Loan Due August 31, 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Effective Rate (as a percent)	3.80%
Long-term Debt, Gross	$ 126,500	138,000
Term Loan Due August 31, 2023
Debt Instrument [Line Items]
Effective Rate (as a percent)	3.80%
Long-term Debt, Gross	$ 146,106	186,498
Finance Leases
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 35	$ 315
Finance Leases \| Minimum
Debt Instrument [Line Items]
Effective Rate (as a percent)	0.00%
Finance Leases \| Maximum
Debt Instrument [Line Items]
Effective Rate (as a percent)	2.09%

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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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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