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Debt - Summary of Carrying Amounts and Estimated Fair Values of Long-Term Borrowings (Details) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term borrowings		$ 216.8	$ 210.1
Current portion of long-term borrowings and finance lease obligations		0.2	0.2
Notional Amount
Debt Instrument [Line Items]
Long-term borrowings	[1]	216.8	210.1
Fair Value
Debt Instrument [Line Items]
Long-term borrowings	[1]	$ 216.8	$ 210.1
[1] Long-term borrowings includes current portions of long-term debt and current portions of finance lease obligations of $0.2 million and $0.2 million as of March 31, 2019 and December 31, 2018, 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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