XML 66 R54.htm IDEA: XBRL DOCUMENT v3.22.0.1
SECURITIES - Amortized Cost and Estimated Fair Value of Investments in Debt Securities By Contractual Maturity (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Available for sale, Amortized Cost    
Due in one year or less $ 3,456  
Due after one year through five years 46,612  
Due after five years through ten years 188,172  
Due after ten years 1,915,434  
Total available-for-sale investment securities 2,153,674  
Mortgage-backed Securities 501,920  
Amortized cost 2,655,594 $ 2,437,513
Available for sale Securities, Fair Value    
Due in one year or less 3,476  
Due after one year through five years 47,625  
Due after five years through ten years 192,036  
Due after ten years 2,003,208  
Subtotal 2,246,345  
Mortgage-backed Securities and Other Equity Securities 517,980  
Total 2,764,325 2,587,305
Held to Maturity, Amortized Cost    
Due in one year or less 120  
Due after one year through five years 529  
Due after five years through ten years 139  
Due after ten years 0  
Subtotal 788  
Mortgage-backed Securities 89,992  
Amortized cost 90,780  
Held to Maturity, Fair Value    
Due in one year or less 120  
Due after one year through five years 531  
Due after five years through ten years 140  
Due after ten years 0  
Subtotal 791  
Mortgage-backed Securities 94,444  
Total $ 95,235 $ 118,198