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

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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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Nominal or face amount used to calculate payment on derivative.

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-SubTopic 10
-Section 50
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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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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Derivatives and Hedging Activities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 25, 2020	Oct. 31, 2021	Oct. 25, 2020	Jan. 31, 2021
Revolving loans
Derivative [Line Items]
Debt amount bearing fixed interest rate	$ 150.0		$ 150.0		$ 150.0
Fixed interest rate	1.9775%		1.9775%		1.9775%
Interest Rate Swap
Derivative [Line Items]
Derivative term		3 years
Realized gain (loss) on hedging	$ (0.9)	$ (0.2)	$ (0.7)	$ (0.3)
Total Return Swap
Derivative [Line Items]
Realized gain (loss) on hedging	0.4		2.0
Derivative, notional value	7.6		7.6		$ 11.9
Derivative, fair value, net	$ 0.2		$ 0.2		$ (0.2)