Annual report [Section 13 and 15(d), not S-K Item 405]

INTANGIBLE ASSETS (Schedule of Information Concerning Intangible Assets with Finite Life) (Details)

v3.25.0.1
INTANGIBLE ASSETS (Schedule of Information Concerning Intangible Assets with Finite Life) (Details) - USD ($)
Dec. 31, 2024
Apr. 01, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]      
Goodwill, Gross Carrying Value $ 925,211,000   $ 925,211,000
Goodwill 1,214,053,000   925,211,000
Accumulated Amortization, Goodwill 0   0
Total estimated amortization expense 84,563,000    
American National      
Finite-Lived Intangible Assets [Line Items]      
Goodwill 288,842,000 $ 288,842,000 0
Initial goodwill 282,300,000    
Core Deposits [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value 85,491,000   85,491,000
Accumulated Amortization (85,768,000)   (68,599,000)
Total estimated amortization expense 74,133,000   16,892,000
Core Deposits [Member] | American National      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value 74,410,000   0
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value 3,977,000   3,977,000
Accumulated Amortization (3,824,000)   (1,686,000)
Total estimated amortization expense 10,430,000   2,291,000
Other Intangible Assets [Member] | American National      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Value $ 10,277,000   $ 0