Income Taxes (Summary of Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Activity Related to Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of period	$ 8,956,000	$ 9,675,000	$ 9,009,000
Increase related to current period	181,000	681,000	598,000
Increase related to prior periods	130,000	51,000	153,000
Expiration of statute of limitations	(622,000)	(1,406,000)	(83,000)
Decrease related to prior periods	(264,000)	(45,000)	(2,000)
Balance at end of period	$ 8,381,000	$ 8,956,000	$ 9,675,000

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 217
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-217

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
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-Paragraph 15A
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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