Dividends and Share Repurchases	9 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Dividends and Share Repurchases	Dividends and Share RepurchasesOn May 22, 2020, the Company paid a regular dividend on common stock of $0.22 per share, which represented the 149th consecutive quarterly cash dividend. Dividends per share were $0.22 and $0.20 for the quarters ended June 30, 2020 and 2019, respectively. On July 28, 2020, the Company declared a regular dividend on common stock of $0.22 per share, which represents its 150th consecutive quarterly cash dividend. This dividend will be paid on August 21, 2020 to common shareholders of record on August 7, 2020. For the three months ended June 30, 2020, the Company repurchased 1,594 shares at an average price of $24.90. As of June 30, 2020, there are 4,627,393 remaining shares authorized to be repurchased under the current Board approved share repurchase program.