Debt and Financing Arrangements (Long term Debt) (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Other	$ 29,280,000	$ 36,514,000
Debt issuance costs	(6,619,000)	(7,032,000)
Total	317,690,000	325,917,000
Less: current maturities of debt	12,533,000	15,783,000
Long-term debt	305,157,000	310,134,000
Term loan due 2024 ($296.3 million face value)
Debt Instrument [Line Items]
Term loan	295,029,000	$ 296,435,000
Debt instrument, face amount	$ 296,300,000.0

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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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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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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