Long-term Debt and Financing Arrangements - Total Outstanding Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 324,813	$ 77,190
Less portion due within one year	(10,172)	(277)
Total long-term debt	$ 314,641	76,913
Revolver Loan
Debt Instrument [Line Items]
Effective Rate (as a percent)	4.15%
Long-term debt	$ 138,000	76,600
Term Loan, net of debt issuance costs
Debt Instrument [Line Items]
Effective Rate (as a percent)	4.15%
Long-term debt	$ 186,498	0
Capital Leases
Debt Instrument [Line Items]
Long-term debt	$ 315	$ 590
Minimum \| Capital Leases
Debt Instrument [Line Items]
Effective Rate (as a percent)	1.65%
Maximum \| Capital Leases
Debt Instrument [Line Items]
Effective Rate (as a percent)	2.09%

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

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