Stockholders' Equity and Regulatory Capital - Additional Information (Details) $ in Millions	12 Months Ended
Jun. 30, 2026 USD ($)
Stockholders' Equity and Regulatory Capital
Capital conservation buffer ratio	0.025
Amount of distributions as dividend of equity	$ 102.7

Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant