Deposits - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023
Deposits
Aggregate Amount of Deposits With a Minimum Denomination of $250,000	$ 1,200.0	$ 1,200.0
Brokered certificates	171.8	146.5
Deposits Held for Affiliates	$ 6.5	$ 6.6

Amount of interest-bearing domestic third-party deposits placed by or through the assistance of a deposit broker, also known as brokered deposit liabilities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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