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Derivatives - Additional Information (Details) € in Millions, $ in Millions			1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 25, 2018 USD ($)	Jan. 20, 2017 USD ($)	Jan. 31, 2018	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Jan. 20, 2017 EUR (€)
Cash Flow Hedging [Member]
Derivative [Line Items]
Loss, net of taxes, recognized in other comprehensive income on cross currency swap derivative				$ 0.4	$ (2.8)	$ 0.7	$ (5.4)
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, term of contract		3 years
Derivative, notional amount		$ 315.0
Derivative, fixed rate		1.65%						1.65%
Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, term of contract		3 years
Derivative, notional amount		$ 100.0						€ 93.7
Cross Currency Interest Rate Contract [Member] | Long [Member]
Derivative [Line Items]
Derivative, fixed rate		1.65%						1.65%
Cross Currency Interest Rate Contract [Member] | Short [Member]
Derivative [Line Items]
Derivative, fixed rate		0.18%						0.18%
Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member]
Derivative [Line Items]
Derivative, term of contract			25 months
Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member] | Accounting Standards Update 2017-12 [Member]
Derivative [Line Items]
Loss, net of taxes, recognized in other comprehensive income on cross currency swap derivative						7.0
Amount reclassified from accumulated other comprehensive income into income as interest expense				$ 0.2		$ 0.6
Derivative amounts excluded from effectiveness testing as interest expense					$ 0.5		$ 1.4
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, notional amount	$ 130.0
Gain on settlement date	$ 1.8

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
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- Definition

The effective portion of gain reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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