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Debt (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 198.0 | $ 197.0
Less: unamortized debt issuance costs | 0.7 | 0.7
Debt, current | 0.0 | 0.0
Long-term debt, excluding current portion | 198.0 | 197.0
Revolving credit facility, Due 2020 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 30.6 | 29.6
Line of credit facility, current borrowing capacity | 300.0 |
Line of credit facility outstanding borrowings, Yen | 4.7 |
Line of credit facility outstanding borrowings, Euro | 25.9 |
Letters of credit outstanding | 2.8 |
Line of credit facility, remaining borrowing capacity | 266.6 |
Notes payable, Due 2019 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 0.1 | 0.1
Series A Notes, Due 2022 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 42.0 | 42.0
Series B Notes, Due 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 53.0 | 53.0
Series C Notes, Due 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 73.0 | $ 73.0

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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