Financing Agreements - Schedule of borrowings (Details) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
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Dec. 31, 2018
USD ($)
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Dec. 31, 2017 |
Sep. 30, 2018
USD ($)
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Dec. 15, 2014 |
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| Financing Agreements | ||||
| Total debt | $ 364.8 | $ 344.6 | ||
| Less: current portion | 0.0 | 0.0 | ||
| Long-term debt | $ 364.8 | $ 344.6 | ||
| Debt Instrument, Covenant Holiday, Maximum Ratio of Indebtedness to Earnings before Interest, Taxes, Depreciation, and Amortization | 3.5 | |||
| $900 revolving credit facility (excluding outstanding letters of credit) | ||||
| Financing Agreements | ||||
| Debt Instrument, Interest Rate During Period | 2.37% | 1.44% | ||
| Total debt | $ 115.8 | $ 95.7 | ||
| $150 senior unsecured notes, net of discount (1) | ||||
| Financing Agreements | ||||
| Total debt | 149.4 | 149.3 | ||
| $100 Series A Notes (2) | ||||
| Financing Agreements | ||||
| Total debt | $ 99.6 | $ 99.6 | ||
| Stated interest rate | 4.60% | |||
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- Definition Debt Instrument, Covenant Terms, Maximum Ratio of Indebtedness to Earnings before Interest, Taxes, Depreciation, and Amortization No definition available.
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- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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