XML 51 R42.htm IDEA: XBRL DOCUMENT v3.23.3
Securities - Unrealized Loss Positions (Details)
 9 Months Ended
Sep. 30, 2023
USD ($)
security
Dec. 31, 2022
USD ($)
Fair value    
Less Than 12 Months, Fair Value $ 58,039,000 $ 271,692,000
12 Months or More, Fair Value 383,529,000 209,967,000
Total Fair Value 441,568,000 481,659,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss 2,843,000 12,523,000
12 Months or More, Unrealized Loss 47,200,000 32,379,000
Total Unrealized Loss $ 50,043,000 44,902,000
Other information    
Number of positions | security 615  
Aggregate fair value $ 441,568,000 481,659,000
Other than temporary impairment 0  
U.S. Treasury securities    
Fair value    
Less Than 12 Months, Fair Value   50,556,000
12 Months or More, Fair Value 51,394,000 8,277,000
Total Fair Value 51,394,000 58,833,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss   1,368,000
12 Months or More, Unrealized Loss 1,391,000 685,000
Total Unrealized Loss 1,391,000 2,053,000
Other information    
Aggregate fair value 51,394,000 58,833,000
U.S. government agencies and corporations    
Fair value    
Less Than 12 Months, Fair Value   71,948,000
12 Months or More, Fair Value 94,050,000 58,326,000
Total Fair Value 94,050,000 130,274,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss   1,578,000
12 Months or More, Unrealized Loss 12,405,000 11,389,000
Total Unrealized Loss 12,405,000 12,967,000
Other information    
Aggregate fair value 94,050,000 130,274,000
Mortgage-backed securities    
Fair value    
Less Than 12 Months, Fair Value 10,704,000 73,301,000
12 Months or More, Fair Value 149,535,000 104,563,000
Total Fair Value 160,239,000 177,864,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss 697,000 5,441,000
12 Months or More, Unrealized Loss 22,542,000 15,099,000
Total Unrealized Loss 23,239,000 20,540,000
Other information    
Aggregate fair value 160,239,000 177,864,000
Obligations of states and political subdivisions    
Fair value    
Less Than 12 Months, Fair Value 44,075,000 60,838,000
12 Months or More, Fair Value 71,081,000 32,120,000
Total Fair Value 115,156,000 92,958,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss 1,657,000 2,434,000
12 Months or More, Unrealized Loss 6,868,000 4,356,000
Total Unrealized Loss 8,525,000 6,790,000
Other information    
Aggregate fair value 115,156,000 92,958,000
Corporate and other debt securities    
Fair value    
Less Than 12 Months, Fair Value 3,260,000 15,049,000
12 Months or More, Fair Value 17,469,000 6,681,000
Total Fair Value 20,729,000 21,730,000
Unrealized Loss    
Less Than 12 Months, Unrealized Loss 489,000 1,702,000
12 Months or More, Unrealized Loss 3,994,000 850,000
Total Unrealized Loss 4,483,000 2,552,000
Other information    
Aggregate fair value $ 20,729,000 $ 21,730,000