XML 55 R45.htm IDEA: XBRL DOCUMENT v3.25.1
Securities - Schedule of Credit Quality Indicators of Held-To-Maturity Securities at Amortized Cost (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity $ 1,843,991 $ 1,867,848
U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 275,854 278,383
State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 1,039,749 1,048,862
U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 343,057 349,726
Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 28,558 29,278
Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 156,773 161,599
AAA    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 643,250 652,633
AAA | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
AAA | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 271,635 273,629
AAA | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 343,057 349,726
AAA | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 28,558 29,278
AAA | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
AA    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 976,763 982,987
AA | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 275,854 278,383
AA | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 694,742 698,428
AA | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
AA | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
AA | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 6,167 6,176
A    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 79,775 77,628
A | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
A | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 68,297 66,079
A | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
A | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
A | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 11,478 11,549
BBB    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 78,643 86,329
BBB | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BBB | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 3,204 10,726
BBB | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BBB | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BBB | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 75,439 75,603
BB    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 4,543
BB | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BB | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BB | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BB | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
BB | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 4,543
Not Rated    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 65,560 63,728
Not Rated | U.S. Treasury, federal agencies, and government sponsored agencies    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
Not Rated | State and municipal    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 1,871 0
Not Rated | U.S. government agency mortgage-backed securities    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
Not Rated | Private labeled mortgage-backed pools    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity 0 0
Not Rated | Corporate notes    
Schedule of Held-to-Maturity Securities [Line Items]    
Investment securities, held to maturity $ 63,689 $ 63,728