Nominal or face amount used to calculate payments on the derivative asset.

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Fair value, after the effects of master netting arrangements, of a financial liability or 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 liabilities not subject to a master netting arrangement and not elected to be offset.

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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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Amount of gain (loss) from the increase (decrease) in fair value of foreign currency derivatives and nonderivative instruments designated as fair value hedging instruments which were recognized in earnings, net of offsets by the gain (loss) on the hedged item to the extent that the fair value hedge was determined to be effective.

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Derivatives and Hedging - Derivatives Not Designated as Hedging Instruments (Details) £ in Thousands, $ in Thousands, € in Millions		3 Months Ended
	Feb. 01, 2019 USD ($)	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Oct. 31, 2019 GBP (£)	Jul. 31, 2019 USD ($)	Sep. 18, 2018 EUR (€)
Derivative [Line Items]
Foreign currency transaction		$ 1,254
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount		34,990			$ 35,700
Foreign currency transaction	$ (70,777)
Derivative liability		1,330			$ 1,226
Not Designated as Hedging Instrument \| Erwin Hymer Group
Derivative [Line Items]
Foreign currency transaction			$ (42,555)
Foreign Exchange Forward
Derivative [Line Items]
Notional amount		$ 51,799		£ 40,000
Foreign Exchange Forward \| Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount \| €						€ 1,625