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Debt and Financing Arrangements (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Sep. 27, 2013
Other, Net |  |  |
Debt Instrument [Line Items] |  |  |
Payments of financing costs | $ 500,000 | $ 900,000 |
LIBOR Rate |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 2.88% |  |
Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Partial repayment of debt | $ 26,100,000 |  |
Term Loan and Revolving Facility |  |  |
Debt Instrument [Line Items] |  |  |
Partial repayment of debt | 28,000,000.0 |  |
Credit Agreement |  |  |
Debt Instrument [Line Items] |  |  |
Additional borrowings available |  |  | $ 75,000,000
Revolving Facility |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount |  |  | 150,000,000
Long-term debt | 0 |  |
Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount |  |  | 150,000,000
Long-term debt | 50,000,000.0 |  |
Annual principal repayments | $ 7,500,000 |  |
Swing Loans |  |  |
Debt Instrument [Line Items] |  |  |
Additional borrowings available |  |  | 20,000,000
Letter of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Additional borrowings available |  |  | $ 20,000,000

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