XML 88 R79.htm IDEA: XBRL DOCUMENT v3.25.1
Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Held to maturity securities $ 2,360,441 $ 2,435,663
Loans held for sale 25,935 18,929
Derivative financial instruments, Financial assets 57,271 71,893
Derivative financial instruments, Financial liabilities 46,865 54,707
Total Fair Value [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, interest-bearing bank deposits, and federal funds sold 1,351,805 1,514,625
Available for sale securities 5,334,528 5,161,491
Held to maturity securities 2,194,627 2,233,526
Loans, net 22,506,158 22,562,577
Loans held for sale 26,596 21,525
Derivative financial instruments, Financial assets 65,776 73,840
Deposits 29,184,403 29,482,628
Federal funds purchased 300 300
Securities sold under agreements to repurchase 542,480 638,715
Long-term debt 178,012 174,660
Derivative financial instruments, Financial liabilities 129,929 160,623
Total Fair Value [Member] | Level 1 [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, interest-bearing bank deposits, and federal funds sold 1,351,414 1,514,216
Total Fair Value [Member] | Level 2 [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, interest-bearing bank deposits, and federal funds sold 391 409
Available for sale securities 5,334,528 5,161,491
Held to maturity securities 2,194,627 2,233,526
Loans held for sale 26,596 21,525
Derivative financial instruments, Financial assets 65,776 73,840
Federal funds purchased 300 300
Securities sold under agreements to repurchase 542,480 638,715
Long-term debt 178,012 174,660
Derivative financial instruments, Financial liabilities 127,786 158,534
Total Fair Value [Member] | Level 3 [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Loans, net 22,506,158 22,562,577
Deposits 29,184,403 29,482,628
Derivative financial instruments, Financial liabilities 2,143 2,089
Carrying Amount [Member]    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cash, interest-bearing bank deposits, and federal funds sold 1,351,805 1,514,625
Available for sale securities 5,334,528 5,161,491
Held to maturity securities 2,360,441 2,435,663
Loans, net 22,780,027 22,980,565
Loans held for sale 26,596 21,525
Derivative financial instruments, Financial assets 65,776 73,840
Deposits 29,194,733 29,492,851
Federal funds purchased 300 300
Securities sold under agreements to repurchase 542,480 638,715
Long-term debt 210,582 210,544
Derivative financial instruments, Financial liabilities $ 129,929 $ 160,623