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Debt - Long-term Borrowings (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities |  | $ 283.1 | $ 64.0
Current portion of long-term borrowings and capital lease obligations |  | 0.2 | 0.5
Notional Amount |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities | [1] | 283.1 | 64.0
Fair Value |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities | [1] | $ 283.1 | $ 64.0
[1] | Long-term borrowings includes current portions of long-term debt and current portions of capital lease obligations of $0.2 million and $0.5 million as of September 30, 2017 and December 31, 2016, respectively.

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- Definition Amount of long-term debt and capital leases 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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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