Stockholders' Equity and Regulatory Capital - Additional Information (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Stockholders' Equity and Regulatory Capital
Capital conservation buffer ratio	0.025
Amount of distributions as dividend of equity	$ 59,800
Assets	$ 5,019,607	$ 4,604,316