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Fair Value of Financial Instruments - Additional Information (Details) - USD ($)	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loans receivable	$ 5,812,937,000	$ 5,732,787,000
Loans acquired with deteriorated credit quality	46,191,000	44,939,000	$ 48,734,000	$ 47,058,000
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value	21,082,000
Other real estate owned	0	0
Significant Unobservable Inputs (Level 3) \| Real Estate
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loans receivable	22,500,000	7,400,000
Loans acquired with deteriorated credit quality	1,400,000	508,000
Collateral dependent loans, fair value	$ 21,100,000	6,900,000
Significant Unobservable Inputs (Level 3) \| Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateral dependent loans, fair value		$ 6,910,000