v3.25.2
Securities - Schedule of Debt Securities Held to Maturity Securities Unrealized Loss Position Fair Value (Detail)
$ in Thousands
Jun. 30, 2025
USD ($)
No
Jun. 30, 2024
USD ($)
No
Debt Securities, Available-for-Sale [Abstract]    
Number of Securities Less Than Twelve Months | No 0 0
Number of Securities Over Twelve Months | No 0 31
Gross Unrealized Losses Less Than Twelve Months $ 0 $ 0
Gross Unrealized Losses Over Twelve Months 0 1
Fair Value Less Than Twelve Months 0 0
Fair Value Over Twelve Months $ 0 $ 74
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.00% 0.00%
Depreciation from Amortized Cost Basis Over Twelve Months 0.00% 1.30%
Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 19 16
Number of Securities over Twelve Months | No 174 202
Gross Unrealized Losses Less Than Twelve Months $ 57 $ 89
Gross Unrealized Losses Over Twelve Months 9,475 13,521
Fair Value Less Than Twelve Months 15,516 10,713
Fair Value Over Twelve Months $ 95,801 $ 109,718
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.40% 0.80%
Depreciation from Amortized Cost Basis more Twelve Months 9.00% 11.00%
Government-sponsored enterprises: Mortgage-backed securities - residential [Member]    
Debt Securities, Available-for-Sale [Abstract]    
Number of Securities Less Than Twelve Months | No 0 0
Number of Securities Over Twelve Months | No 0 31
Gross Unrealized Losses Less Than Twelve Months $ 0 $ 0
Gross Unrealized Losses Over Twelve Months 0 1
Fair Value Less Than Twelve Months 0 0
Fair Value Over Twelve Months $ 0 $ 74
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.00% 0.00%
Depreciation from Amortized Cost Basis Over Twelve Months 0.00% 1.30%
Government-sponsored enterprises: Mortgage-backed securities - residential [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 8 5
Number of Securities over Twelve Months | No 104 122
Gross Unrealized Losses Less Than Twelve Months $ 33 $ 25
Gross Unrealized Losses Over Twelve Months 1,479 2,738
Fair Value Less Than Twelve Months 6,439 3,575
Fair Value Over Twelve Months $ 25,839 $ 34,679
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.50% 0.70%
Depreciation from Amortized Cost Basis more Twelve Months 5.40% 7.30%
Government-sponsored enterprises: Debt obligations [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No   0
Number of Securities over Twelve Months | No   1
Gross Unrealized Losses Less Than Twelve Months   $ 0
Gross Unrealized Losses Over Twelve Months   19
Fair Value Less Than Twelve Months   0
Fair Value Over Twelve Months   $ 979
Depreciation from Amortized Cost Basis Less Than Twelve Months   0.00%
Depreciation from Amortized Cost Basis more Twelve Months   1.90%
Government-sponsored enterprises: commercial [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 2 2
Number of Securities over Twelve Months | No 1 0
Gross Unrealized Losses Less Than Twelve Months $ 4 $ 3
Gross Unrealized Losses Over Twelve Months 5 0
Fair Value Less Than Twelve Months 1,595 1,885
Fair Value Over Twelve Months $ 826 $ 0
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.30% 0.10%
Depreciation from Amortized Cost Basis more Twelve Months 0.60% 0.00%
Municipal Bonds [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 6 8
Number of Securities over Twelve Months | No 33 41
Gross Unrealized Losses Less Than Twelve Months $ 15 $ 56
Gross Unrealized Losses Over Twelve Months 5,420 6,291
Fair Value Less Than Twelve Months 4,293 3,724
Fair Value Over Twelve Months $ 25,489 $ 30,085
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.30% 1.50%
Depreciation from Amortized Cost Basis more Twelve Months 17.50% 17.30%
Government-sponsored enterprises: Collateralized mortgage obligations [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 3  
Number of Securities over Twelve Months | No 0  
Gross Unrealized Losses Less Than Twelve Months $ 5  
Gross Unrealized Losses Over Twelve Months 0  
Fair Value Less Than Twelve Months 3,189  
Fair Value Over Twelve Months $ 0  
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.20%  
Depreciation from Amortized Cost Basis more Twelve Months 0.00%  
Corporate Bond Securities [Member] | Agency Securities [Member]    
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss [Abstract]    
Number of Securities Less Than Twelve Months | No 0 1
Number of Securities over Twelve Months | No 36 38
Gross Unrealized Losses Less Than Twelve Months $ 0 $ 5
Gross Unrealized Losses Over Twelve Months 2,571 4,473
Fair Value Less Than Twelve Months 0 1,529
Fair Value Over Twelve Months $ 43,647 $ 43,975
Depreciation from Amortized Cost Basis Less Than Twelve Months 0.00% 0.30%
Depreciation from Amortized Cost Basis more Twelve Months 5.60% 9.20%