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Derivative Instruments and Hedging Activities - Additional Information (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2025 USD ($) derivative_instrument counterparty	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Derivative [Line Items]
Reclassifications to interest expense	$ 5,490	$ (20,197)	$ (39,002)
Derivative liability, number of instruments held \| counterparty	1
Financial collateral posted	$ 4,700	0
Interest Expense
Derivative [Line Items]
Reclassifications to interest expense	(26,500)
Estimated cash flow hedge gain (loss) to be reclassified in next twelve months	(12,600)
Interest Income
Derivative [Line Items]
Estimated cash flow hedge gain (loss) to be reclassified in next twelve months	(216)
Credit Risk Contract
Derivative [Line Items]
Pipeline of loans held-for-sale	11,100	16,000
Interest rate contracts \| Reclassification out of Accumulated Other Comprehensive Income \| Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Derivative [Line Items]
Amount of loss reclassified from accumulated other comprehensive income to interest income	$ 57	$ 248	$ 0
Cash Flow Hedges \| Interest Rate Swaps
Derivative [Line Items]
Number of interest rate derivative instruments held \| derivative_instrument	15
Derivative, notional amount	$ 1,750,000
Cash Flow Hedges \| Interest Rate Floor
Derivative [Line Items]
Number of interest rate derivative instruments held \| derivative_instrument	5
Derivative, notional amount	$ 550,000
Fair Value Hedging \| Interest Rate Swaps
Derivative [Line Items]
Number of interest rate derivative instruments held \| derivative_instrument	5
Derivative, notional amount	$ 775,000