Loans and Allowance for Credit Losses - Collateral dependent loans and related ACL (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Total Loans Receivable	$ 3,619,197	$ 2,719,843
Related allowance for credit losses	47,820	33,192	$ 33,222
Collateral-dependent Loans | 1- to 4-family residential loans
Total Loans Receivable	6,376	864
Related allowance for credit losses	901	193
Residential Real Estate
Total Loans Receivable	1,133,417	904,160
Related allowance for credit losses	15,641	8,908	$ 11,192
Residential Real Estate | Collateral-dependent Loans
Total Loans Receivable	6,376	864
Related allowance for credit losses	$ 901	$ 193