Loans and Allowance for Credit Losses - Balance and activity in the Allowance for credit losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Allowance for credit losses:
Balance, beginning of period	$ 47,820	$ 33,192
Provision (benefit) charged to expense	1,570	4,250
Losses charged off	(335)	(37)
Recoveries	67	13
Balance, end of period	49,122	37,418
Residential Real Estate
Allowance for credit losses:
Balance, beginning of period	15,641	8,908
Provision (benefit) charged to expense	(663)	3,030
Losses charged off	(132)	(2)
Recoveries		1
Balance, end of period	14,846	11,937
Construction Real Estate
Allowance for credit losses:
Balance, beginning of period	2,664	2,220
Provision (benefit) charged to expense	303	283
Losses charged off	(111)
Balance, end of period	2,856	2,503
Commercial Real Estate
Allowance for credit losses:
Balance, beginning of period	22,838	16,838
Provision (benefit) charged to expense	2,166	1,048
Recoveries	18
Balance, end of period	25,022	17,886
Consumer loans
Allowance for credit losses:
Balance, beginning of period	909	710
Provision (benefit) charged to expense	(12)	12
Losses charged off	(88)	(35)
Recoveries	46	6
Balance, end of period	855	693
Commercial loans
Allowance for credit losses:
Balance, beginning of period	5,768	4,516
Provision (benefit) charged to expense	(224)	(123)
Losses charged off	(4)
Recoveries	3	6
Balance, end of period	$ 5,543	$ 4,399