Derivatives and Hedging - Fair Value and Associated Notional Amounts (Details) - Cash Flow Hedges - USD ($)	Apr. 30, 2021	Jul. 31, 2020
Derivative [Line Items]
Notional	$ 607,135,000	$ 673,400,000
Fair value in other current liabilities	14,008,000	24,840,000
Derivative Asset, Fair Value, Gross Asset	494,000
Foreign exchange forward
Derivative [Line Items]
Notional	75,110,000	0
Fair value in other current liabilities	0	0
Derivative Asset, Fair Value, Gross Asset	494,000
Interest rate swap agreements
Derivative [Line Items]
Notional	532,025,000	673,400,000
Fair value in other current liabilities	14,008,000	$ 24,840,000
Derivative Asset, Fair Value, Gross Asset	$ 0

Fair value of liability associated with 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.

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Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement.

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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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