CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Purchase of treasury stock	62,746	162,291
Issuance of treasury stock	174,107	10,300
Cancellations of treasury stock	31,057	34,727
Dividends, per share (in dollars per share)	$ 0.22	$ 0.215