XML 43 R36.htm IDEA: XBRL DOCUMENT v3.25.3
Securities - Schedule of Amortized Cost and Fair Value of Investment Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Marketable Securities [Line Items]    
Available for Sale, Amortized Cost $ 334,356 $ 339,016
Available for Sale, Gross Unrealized Gains 1,813 2,157
Available for Sale, Gross Unrealized Losses (3,800) (4,213)
Available for Sale 332,369 336,960
Held to Maturity, Amortized Cost 9,900,093 10,757,464
Held to Maturity, Gross Unrealized Gains 9,708 600
Held to Maturity, Gross Unrealized Losses (928,129) (1,375,585)
Held to Maturity 8,981,672 9,382,479
Corporate Debt Securities [Member]    
Marketable Securities [Line Items]    
Available for Sale, Amortized Cost 7,935 14,350
Available for Sale, Gross Unrealized Gains 1,725 2,035
Available for Sale, Gross Unrealized Losses   (60)
Available for Sale 9,660 16,325
Held to Maturity, Amortized Cost 12,000 12,000
Held to Maturity, Gross Unrealized Losses (2,160) (3,840)
Held to Maturity 9,840 8,160
Collateralized Mortgage Obligations [Member]    
Marketable Securities [Line Items]    
Available for Sale, Amortized Cost 220,188 216,142
Available for Sale, Gross Unrealized Gains   81
Available for Sale, Gross Unrealized Losses (2,999) (3,233)
Available for Sale 217,189 212,990
Held to Maturity, Amortized Cost 231,085 232,345
Held to Maturity, Gross Unrealized Gains 835  
Held to Maturity, Gross Unrealized Losses (12,483) (24,128)
Held to Maturity 219,437 208,217
Mortgage-backed Securities [Member]    
Marketable Securities [Line Items]    
Available for Sale, Amortized Cost 106,233 108,524
Available for Sale, Gross Unrealized Gains 88 41
Available for Sale, Gross Unrealized Losses (801) (920)
Available for Sale 105,520 107,645
Held to Maturity, Amortized Cost 9,580,644 10,409,133
Held to Maturity, Gross Unrealized Gains 8,479 380
Held to Maturity, Gross Unrealized Losses (912,055) (1,345,063)
Held to Maturity 8,677,068 9,064,450
U.S. Government Agencies [Member]    
Marketable Securities [Line Items]    
Held to Maturity, Amortized Cost 5,989 5,861
Held to Maturity, Gross Unrealized Gains 4  
Held to Maturity, Gross Unrealized Losses (1) (44)
Held to Maturity 5,992 5,817
States and Political Subdivisions [Member]    
Marketable Securities [Line Items]    
Held to Maturity, Amortized Cost 70,375 98,125
Held to Maturity, Gross Unrealized Gains 390 220
Held to Maturity, Gross Unrealized Losses (1,430) (2,510)
Held to Maturity $ 69,335 $ 95,835