Debt and Financing Arrangements (Long term Debt) (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018	Mar. 07, 2017
Debt Instrument [Line Items]
Term loan	$ 291,524,000	$ 293,626,000
Other	18,471,000	30,449,000
Debt issuance costs	(5,289,000)	(6,092,000)
Total	304,706,000	317,983,000
Less: current maturities of debt	11,925,000	17,797,000
Long-term debt	292,781,000	$ 300,186,000
Senior Notes \| New Term Loan Debt Facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 292,500,000.0		$ 300,000,000

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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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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