Loans and Allowance for Credit Losses - Collateral dependent loans and related ACL (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Total Loans Receivable	$ 3,850,035	$ 3,619,197
Related allowance for credit losses	52,516	47,820	$ 33,192
Collateral Pledged [Member]
Total Loans Receivable	26,959	6,376
Related allowance for credit losses	10,926	901
1- to 4-family residential real estate
Total Loans Receivable	797	837
Related allowance for credit losses	116	156
Construction real estate
Total Loans Receivable		642
Related allowance for credit losses		79
Commercial real estate
Total Loans Receivable	23,457	4,897
Related allowance for credit losses	10,175	666
Commercial
Total Loans Receivable	2,705
Related allowance for credit losses	635
Commercial Real Estate Portfolio Segment [Member]
Total Loans Receivable	1,622,365	1,562,379
Related allowance for credit losses	26,460	22,838	16,838
Commercial Real Estate Portfolio Segment [Member] | Collateral Pledged [Member]
Total Loans Receivable	23,457	4,897
Commercial Real Estate Portfolio Segment [Member] | Commercial real estate
Total Loans Receivable	23,457	4,897
Residential Portfolio Segment [Member]
Total Loans Receivable	1,185,692	1,133,417
Related allowance for credit losses	15,839	15,641	8,908
Residential Portfolio Segment [Member] | Collateral Pledged [Member]
Total Loans Receivable	797	837
Residential Portfolio Segment [Member] | 1- to 4-family residential real estate
Total Loans Receivable	797	837
Business Equipment [Member] | Collateral Pledged [Member]
Total Loans Receivable	2,705
Business Equipment [Member] | Commercial
Total Loans Receivable	2,705
Construction Real Estate
Total Loans Receivable	229,088	190,856
Related allowance for credit losses	2,201	2,664	2,220
Construction Real Estate | Collateral Pledged [Member]
Total Loans Receivable		642
Construction Real Estate | Construction real estate
Total Loans Receivable		642
Commercial
Total Loans Receivable	668,292	599,030
Related allowance for credit losses	$ 6,914	$ 5,768	$ 4,516