Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,543	$ 16,240
Unrealized gains on AFS securities arising during the period, net of taxes of $(5,350) and $(4,211)	16,581	13,050
Reclassification adjustment for gross gains on AFS securities included in net income, net of taxes of $383 and $0	1,188	0
Unrealized gains (losses) on cash flow hedges arising during the period, net of taxes of $967 and $(232)	(2,998)	715
Reclassification adjustment for cash flow hedge amounts included in net income, net of taxes of $626 and $237	1,940	734
Comprehensive income	$ 12,998	$ 29,271