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Debt - Summary of Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions		Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term borrowings		$ 210.1	$ 277.7
Current portion of long-term borrowings and capital lease obligations		0.2	0.3
Notional Amount
Debt Instrument [Line Items]
Long-term borrowings	[1]	210.1	277.7
Fair Value
Debt Instrument [Line Items]
Long-term borrowings	[1]	$ 210.1	$ 277.7
[1] Long-term borrowings includes current portions of long-term debt and current portions of capital lease obligations of $0.2 million and $0.3 million as of December 31, 2018 and 2017, 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://fasb.org/us-gaap/role/ref/legacyRef
-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

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Amount of long-term debt and capital lease obligations including current maturities.

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