Dividends (Details) - $ / shares		3 Months Ended		12 Months Ended
	Jul. 21, 2021	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Dividends [Abstract]
Common stock, dividends, per share, declared (in dollars per share)		$ 0.13	$ 0.12
2021 Q4 Dividend [Member]
Dividends [Abstract]
Dividends payable, date declared		Jul. 21, 2021
Common stock, dividends, per share, declared (in dollars per share)	$ 0.13
Dividends payable, date of record		Aug. 16, 2021
Dividends payable, date paid		Aug. 31, 2021
2022 Annual Dividend [Member]
Dividends [Abstract]
Common stock, dividends, per share, declared (in dollars per share)	$ 0.52
Percentage of increase in cash dividend rate	8.30%
2021 Annual Dividend [Member]
Dividends [Abstract]
Common stock, dividends, per share, declared (in dollars per share)				$ 0.48