Derivatives and Hedging - Financial Statement Impact of Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
Oct. 31, 2020	Oct. 31, 2019
Not designated as hedging instrument
Gain (Loss) recognized in Other Comprehensive Income, net of tax
Total gain (loss)	$ 3,332	$ (3,722)
Foreign currency forward contracts \| Not designated as hedging instrument
Gain (Loss) recognized in Other Comprehensive Income, net of tax
Total gain (loss)	0	(525)
Interest rate swap agreements \| Not designated as hedging instrument
Gain (Loss) recognized in Other Comprehensive Income, net of tax
Total gain (loss)	3,332	(3,197)
Sales
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Total (loss)	0	0
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]
(Loss) Reclassified from AOCI, Net of Tax	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]
(Loss) Reclassified from AOCI, Net of Tax	0	0
Sales \| Interest rate swap agreements \| Not designated as hedging instrument
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
Interest expense
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Total (loss)	(2,812)	(570)
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]
(Loss) Reclassified from AOCI, Net of Tax	0	0
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]
(Loss) Reclassified from AOCI, Net of Tax	(2,774)	(495)
Interest expense \| Interest rate swap agreements \| Not designated as hedging instrument
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]
Amount of loss recognized in income, net of tax	$ (38)	$ (75)

No definition available.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
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- Definition

Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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