Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

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Date the dividend to be paid was declared, in YYYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

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Subsequent Events (Details) - $ / shares	3 Months Ended	12 Months Ended
Subsequent Events (Details) - $ / shares	Dec. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Subsequent Event [Line Items]
Cash dividend declared (in dollars per share)		$ 0.40	$ 0.40	$ 0.40
Subsequent Event
Subsequent Event [Line Items]
Cash dividend declared, date	Nov. 02, 2021
Cash dividend declared (in dollars per share)	$ 0.10
Cash dividend declared, payment date	Dec. 23, 2021
Cash dividend declared, record date	Dec. 03, 2021