Loans and Allowance for Credit Losses - Performing Loans Classified as Modifications to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2024 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.66%
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.07%
Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	1.47%
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.07%
Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	$ 235
Payment Delays | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	235
Term Extension Modifications
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	24,613
Term Extension Modifications | Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	807
Term Extension Modifications | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	23,627
Term Extension Modifications | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	$ 179