Defined Contribution Plan (Details) - USD ($) shares in Thousands	12 Months Ended
Jul. 31, 2023	Jul. 31, 2022
Defined Contribution Plan (Details) [Line Items]
Contribution plan cost	$ 45,000	$ 43,000
Class B Common Stock [Member]
Defined Contribution Plan (Details) [Line Items]
Shares issued	18,278	4,812

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-2

Name:	us-gaap_SharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant