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Debt - Summary of Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term borrowings	$ 210.0	$ 220.5
Current portion of long-term borrowings and finance lease obligations	0.2	0.2
Notional Amount
Debt Instrument [Line Items]
Long-term borrowings	210.0	220.5
Fair Value
Debt Instrument [Line Items]
Long-term borrowings	$ 210.0	$ 220.5

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+ References

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- Definition

Amount of long-term debt and lease obligation, classified as current.

+ 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=120391452&loc=d3e13212-122682

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