Loans and Allowance for Credit Losses - Performing Loans Classified as Modifications to Borrowers Experiencing Financial Difficulty (Details) $ in Thousands	6 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.65%
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.02%
Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.62%
Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Class of Financing Receivable	0.01%
Payment Delays
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	$ 239
Payment Delays | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	239
Term Extension Modifications
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	23,998
Term Extension Modifications | Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	814
Term Extension Modifications | Commercial Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	23,010
Term Extension Modifications | Commercial loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Recorded Investment, modifications	$ 174