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Business Segment Information (Details)	6 Months Ended
	Jan. 31, 2022
Segment Reporting [Abstract]
Number of operating segments	2
Real estate segment, description	The Real Estate segment consists of the Company’s real estate holdings, including a building at 520 Broad Street in Newark, New Jersey that houses headquarters for the Company and certain affiliates and its associated public garage and a portion of an office building in Israel.

X

- Definition

Sale of building, description

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

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- References

No definition available.

+ Details

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