XML 82 R59.htm IDEA: XBRL DOCUMENT v3.23.1
Investment Securities - Maturities of Investment Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]    
Held-to-maturity, amortized cost, one year or less $ 2,413  
Held-to-maturity, amortized cost, after one through five years 6,455  
Held-to-maturity, amortized cost, after five through ten years 359,813  
Held-to-maturity, amortized cost, after ten years 2,197,272  
Held-to-maturity, amortized cost, securities not due on a single maturity date 1,201,418  
Amortized Cost 3,767,371 $ 3,761,094
Held-to-maturity, fair value, one year or less 2,413  
Held-to-maturity, fair value, after one through five years 6,332  
Held-to-maturity, fair value, after five through ten years 321,295  
Held-to-maturity, fair value, after ten years 1,721,354  
Held-to-maturity, fair value, securities not due on a single maturity date 1,097,582  
Held-to-maturity, fair value, total 3,148,976 3,063,233
Available-for-sale, amortized cost, one year or less 12,552  
Available-for-sale, amortized cost, after one through five years 184,643  
Available-for-sale, amortized cost, after five through ten years 256,336  
Available-for-sale, amortized cost, after ten years 1,067,885  
Available-for-sale, amortized cost, securities not due on a single maturity date 2,664,735  
Available-for-sale, amortized cost, other securities (no maturity) 280  
Amortized Cost 4,186,431 4,331,413
Available-for-sale, fair value, one year or less 12,376  
Available-for-sale, fair value, after one through five years 178,272  
Available-for-sale, fair value, after five through ten years 233,547  
Available-for-sale, fair value, after ten years 897,951  
Available-for-sale, fair value, securities not due on a single maturity date 2,433,530  
Available-for-sale, fair value, other securities (no maturity) 280  
Available-for-sale, fair value, total $ 3,755,956 $ 3,852,854