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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income before income taxes	$ 1,984	$ 25,570	$ 23,774	$ 52,557
Statutory federal tax rate	21.00%	21.00%	21.00%	21.00%
Federal income tax expense at statutory rate	$ 417	$ 5,370	$ 4,993	$ 11,037
(Reduction) increase in income taxes resulting from:
Tax exempt interest	(46)	(68)	(105)	(138)
State tax, net of federal tax effect	(124)	1,990	1,296	4,118
Incentive stock option compensation expense	3	16	6	39
Income from bank-owned life insurance	(362)	(328)	(1,137)	(656)
Other items, net	145	(179)	235	(327)
Total income tax expense	$ 33	$ 6,801	$ 5,288	$ 14,073
Effective income tax rate	1.66%	26.60%	22.24%	26.78%

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