v3.26.3
Business Combinations - Transaction Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Business Combination, Separately Recognized Transaction [Line Items]        
Labor and Related Expense $ 153,714 $ 135,703 $ 450,054 $ 386,593
Information Technology and Data Processing 42,725 28,590 105,328 82,237
Occupancy, Net 15,552 12,757 43,369 40,782
Marketing and Advertising Expense 9,477 8,362 25,851 22,496
Equipment Expense 5,480 4,368 16,514 13,389
Professional Fees 9,053 5,232 33,228 17,989
Other Noninterest Expense 3,606 $ 7,369 24,520 $ 29,017
American National [Member]        
Business Combination, Separately Recognized Transaction [Line Items]        
Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Expensed     38,700  
American National [Member] | Other Expense [Member]        
Business Combination, Separately Recognized Transaction [Line Items]        
Labor and Related Expense 723   14,087  
Information Technology and Data Processing 9,039   9,820  
Occupancy, Net 503   606  
Marketing and Advertising Expense 862   1,516  
Equipment Expense 102   200  
Professional Fees 2,029   12,282  
Other Noninterest Expense 0   223  
Business Combination, Separately Recognized Transaction, Acquisition-Related Cost, Expensed $ 13,258   $ 38,734