v3.26.1
Acquisitions - Additional Information (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Feb. 01, 2026
BankingOffices
Jan. 28, 2026
BankingOffices
$ / shares
shares
Jan. 27, 2026
USD ($)
$ / shares
Jan. 01, 2026
BankingOffices
LoanProductionOffices
Mar. 31, 2026
USD ($)
shares
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Business Acquisition [Line Items]              
Goodwill         $ 3,822,283 $ 3,503,127 $ 3,503,129
Core deposit intangibles         $ 111,243 $ 51,605 $ 66,047
American Bank Holding Corporation [Member]              
Business Acquisition [Line Items]              
Business acquisition, equity interest issued or issuable, number of shares | shares         4,439,938    
Goodwill         $ 185,000    
Core deposit intangibles         31,100    
Number of banking offices | BankingOffices       18      
American Bank Holding Corporation [Member] | Houston Texas [Member]              
Business Acquisition [Line Items]              
Number of loan production offices | LoanProductionOffices       1      
Southwest Bancshares Inc [Member]              
Business Acquisition [Line Items]              
Goodwill         134,100    
Core deposit intangibles         $ 33,800    
Number of banking offices | BankingOffices 11            
Stellar Bancorp Inc [Member]              
Business Acquisition [Line Items]              
Business acquisition, equity interest issued or issuable, number of shares | shares   0.3803          
Purchase consideration cash payable per share | $ / shares   $ 11.36          
Number of banking offices | BankingOffices   52          
Closing price | $ / shares     $ 72.9        
Total consideration     $ 2,002