Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Loans and Allowance for Credit Losses - Collateral dependent loans and related ACL (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jul. 01, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Related allowance for credit losses	$ 33,222	$ 25,139	$ 25,139	$ 19,903	$ 18,214
Collateral-dependent Loans \| 1- to 4-family residential loans
Amortized cost	895
Related allowance for credit losses	223
Residential Real Estate
Related allowance for credit losses	11,192	$ 4,875	$ 4,875	$ 3,706	$ 3,226
Residential Real Estate \| Collateral-dependent Loans
Amortized cost	895
Related allowance for credit losses	$ 223