v3.26.1
Investment Securities - Contractual Maturities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Available for Sale Securities, Amortized Cost    
Within one year $ 61,194 $ 85,226
After one through five years 229,998 205,000
Total, single maturity date 291,192 290,226
Amortized Cost 844,952 865,102
Available for Sale Securities, Fair Value    
Within one year 61,210 85,292
After one through five years 228,932 204,896
Total, single maturity date 290,142 290,188
Total 843,896 865,058 [1]
Held to Maturity Securities, Amortized Cost    
Amortized Cost 1,425,982 1,543,659 [1]
Held to Maturity Securities, Fair Value    
Fair Value 1,426,444 1,543,554
Mortgage-backed - Agency - multi-family    
Available for Sale Securities, Amortized Cost    
Without single maturity date 3,553 3,562
Available for Sale Securities, Fair Value    
Without single maturity date 3,547 3,556
Held to Maturity Securities, Amortized Cost    
Amortized Cost 11,640 11,684
Held to Maturity Securities, Fair Value    
Fair Value 10,983 11,005
Mortgage-backed - Agency - residential - fair value option    
Available for Sale Securities, Amortized Cost    
Without single maturity date 178,985 185,854
Amortized Cost 178,985 185,854
Available for Sale Securities, Fair Value    
Without single maturity date 178,985 185,854
Total 178,985 185,854
Mortgage-backed - Non-Agency - multi-family    
Held to Maturity Securities, Amortized Cost    
Amortized Cost 394,844 438,430
Held to Maturity Securities, Fair Value    
Fair Value 393,952 437,480
Mortgage-backed - Non-Agency residential    
Available for Sale Securities, Amortized Cost    
Without single maturity date 371,222 385,460
Amortized Cost 371,222 385,460
Available for Sale Securities, Fair Value    
Without single maturity date 371,222 385,460
Total 371,222 385,460
Held to Maturity Securities, Amortized Cost    
Amortized Cost 663,192 699,957
Held to Maturity Securities, Fair Value    
Fair Value 665,206 701,485
Mortgage-backed - Non-Agency - healthcare    
Held to Maturity Securities, Amortized Cost    
Amortized Cost 356,306 393,588
Held to Maturity Securities, Fair Value    
Fair Value $ 356,303 $ 393,584
[1] Derived from audited consolidated financial statements.