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

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

The applicable margin for the debt instrument related to the interest rate derivative, included in the total fixed rate payable on the derivative notional amount.

+ References

No definition available.

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- Definition

The interest rate period of the variable rate basis used to determine the floating rate receivable on the notional amount of the derivative instrument.

+ References

No definition available.

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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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

Amount of gain (loss) from the ineffectiveness of the hedge.

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Derivative Financial Instruments (Details) - USD ($) $ in Millions	6 Months Ended
	Aug. 04, 2018	Jun. 30, 2018	Apr. 30, 2017
Interest rate swap \| Designated as hedging instruments
Derivative Financial Instruments
Fair value of the interest rate swaps	$ 5.2
Hedge ineffectiveness	0.0
Effective portion of the loss expected to be reclassified from accumulated other comprehensive (loss) income into earnings over the next 12 months	(0.2)
Interest rate swap \| Designated as hedging instruments \| Other current assets
Derivative Financial Instruments
Derivative asset	1.5
Interest rate swap \| Designated as hedging instruments \| Accrued expenses and other current liabilities
Derivative Financial Instruments
Derivative asset	1.7
Interest rate swap \| Designated as hedging instruments \| Other assets
Derivative Financial Instruments
Derivative asset	5.4
Interest rate swap matures in June 2021 \| Designated as hedging instruments
Derivative Financial Instruments
Notional amount	$ 370.0		$ 260.0
Fixed rate payable (as a percent)	5.56%
Applicable margin included in fixed rate (as a percent)	3.50%
Interest rate swap matures in June 2021 \| Designated as hedging instruments \| LIBOR
Derivative Financial Instruments
Period for interest rate basis for variable rate receivable	1 month
Interest rate swap matures in April 2025 \| Designated as hedging instruments
Derivative Financial Instruments
Notional amount	$ 345.0	$ 320.0
Fixed rate payable (as a percent)	6.43%
Applicable margin included in fixed rate (as a percent)	3.50%
Interest rate swap matures in April 2025 \| Designated as hedging instruments \| LIBOR
Derivative Financial Instruments
Period for interest rate basis for variable rate receivable	1 month
Foreign exchange forward \| Designated as hedging instruments
Derivative Financial Instruments
Derivative asset	$ 1.2
Effective portion of the loss expected to be reclassified from accumulated other comprehensive (loss) income into earnings over the next 12 months	0.8
Foreign exchange forward \| Designated as hedging instruments \| United Kingdom, Pounds
Derivative Financial Instruments
Notional amount	27.2
Foreign exchange forward \| Designated as hedging instruments \| Euro Member Countries, Euro
Derivative Financial Instruments
Notional amount	8.0
Foreign exchange forward \| Designated as hedging instruments \| Other current assets
Derivative Financial Instruments
Derivative asset	1.3
Foreign exchange forward \| Designated as hedging instruments \| Accrued expenses and other current liabilities
Derivative Financial Instruments
Derivative asset	0.1
Foreign exchange forward \| Not designated as hedging instrument \| Canada, Dollars
Derivative Financial Instruments
Notional amount	$ 4.6