Subsequent Events Subsequent Events	12 Months Ended
Jul. 31, 2022
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent EventsOn August 31, 2022, the Company announced an increase in the annual dividend to shareholders of the Company's Class A Common Stock, from $0.90 to $0.92 per share. A quarterly dividend of $0.23 will be paid on October 28, 2022, to shareholders of record at the close of business on October 7, 2022. This dividend represents an increase of 2.2% and is the 37th consecutive annual increase in dividends.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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