v3.25.2
Securities - Amortized Cost and Fair Value and Allowance for Credit Loss on Securities Held-to-Maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] $ 776,695 $ 690,837  
Unrealized gains 10,381 4,604  
Unrealized losses 48,942 65,200  
Fair value 738,134 630,241  
Allowance 548 483 $ 0
Net carrying value 776,147 690,354  
U.S. Treasury Securities [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 15,850 23,785  
Unrealized gains 0 0  
Unrealized losses 868 1,749  
Fair value 14,982 22,036  
Allowance 0 0  
Net carrying value 15,850 23,785  
State and Political Subdivisions [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 460,959 450,343  
Unrealized gains 8,938 4,541  
Unrealized losses 32,028 40,235  
Fair value 437,869 414,649  
Allowance 40 44  
Net carrying value 460,919 450,299  
Mortgage-backed Securities-Residential [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 138,468 48,033  
Unrealized gains 1,388 51  
Unrealized losses 2,327 3,314  
Fair value 137,529 44,770  
Allowance 0 0  
Net carrying value 138,468 48,033  
Mortgage-backed Securities-Multi-family [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 130,119 143,363  
Unrealized gains 0 0  
Unrealized losses 11,963 17,397  
Fair value 118,156 125,966  
Allowance 0 0  
Net carrying value 130,119 143,363  
Corporate Debt Securities [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 31,270 25,282  
Unrealized gains 55 12  
Unrealized losses 1,756 2,505  
Fair value 29,569 22,789  
Allowance 507 438  
Net carrying value 30,763 24,844  
Other Securities [Member]      
Securities [Abstract]      
Amortized cost, total securities held-to-maturity [1] 29 31  
Unrealized gains 0 0  
Unrealized losses 0 0  
Fair value 29 31  
Allowance 1 1  
Net carrying value $ 28 $ 30  
[1] Amortized cost excludes accrued interest receivable of $4.9 million and $4.1 million at June 30, 2025 and June 30, 2024, respectively, which is included in accrued interest receivable in the consolidated statements of financial condition.