Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 67,547	$ 63,233	$ 44,965
Other Comprehensive (Loss) Income, net of tax:
Net unrealized (loss) gain on securities available for sale	(91,453)	(8,274)	16,126
Amortization of net unrealized loss on securities available for sale transferred to held to maturity			421
Net realized loss (gain) on sale and call of securities available for sale	397	(538)	(1,587)
Fair value adjustments on derivatives	28,481	13,470	(16,310)
Benefit plan adjustments	704	229	(232)
Total Other Comprehensive (Loss) Income	(61,871)	4,887	(1,582)
Total Comprehensive Income	$ 5,676	$ 68,120	$ 43,383