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Derivatives and Hedging - Financial Statement Impact of Derivatives (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020
Not designated as hedging instrument |  |  |  |
Gain (Loss) recognized in Other Comprehensive Income, net of tax |  |  |  |
Total gain (loss) | $ 2,929 | $ (7,763) | $ 8,612 | $ (11,709)
Foreign currency forward contracts | Not designated as hedging instrument |  |  |  |
Gain (Loss) recognized in Other Comprehensive Income, net of tax |  |  |  |
Total gain (loss) | 422 | 856 | 356 | (159)
Interest rate swap agreements | Not designated as hedging instrument |  |  |  |
Gain (Loss) recognized in Other Comprehensive Income, net of tax |  |  |  |
Total gain (loss) | 2,507 | (8,619) | 8,256 | (11,550)
Sales |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Total gain (loss) | (429) | (121) | (422) | (555)
Sales | Foreign currency forward contracts | Designated as hedging instrument | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Gain (Loss) Reclassified from AOCI, Net of Tax | (429) | (121) | (422) | (555)
Sales | Interest rate swap agreements |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Amount of loss recognized in income, net of tax | 0 | 0 | 0 | 0
Sales | Interest rate swap agreements | Designated as hedging instrument | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Gain (Loss) Reclassified from AOCI, Net of Tax | 0 | 0 | 0 | 0
Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Total gain (loss) | (2,245) | (1,490) | (7,688) | (3,172)
Interest expense | Foreign currency forward contracts | Designated as hedging instrument | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Gain (Loss) Reclassified from AOCI, Net of Tax | 0 | 0 | 0 | 0
Interest expense | Interest rate swap agreements |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Amount of loss recognized in income, net of tax | 108 | (107) | 62 | (275)
Interest expense | Interest rate swap agreements | Designated as hedging instrument | Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] |  |  |  |
Gain (Loss) Reclassified from AOCI, Net of Tax | $ (2,353) | $ (1,383) | $ (7,750) | $ (2,897)

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