v3.26.1
Subsequent Events - Additional Information (Details)
$ in Thousands
Jul. 01, 2026
USD ($)
BankingOffices
shares
Feb. 01, 2026
BankingOffices
shares
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Subsequent Event [Line Items]        
Total assets     $ 43,872,511 $ 38,463,425
Loans     24,645,157 21,471,626
Total deposits     $ 32,599,687 $ 28,482,484
Southwest Bancshares Inc [Member]        
Subsequent Event [Line Items]        
Number of banking offices | BankingOffices   11    
Business acquisition, equity interest issued or issuable, number of shares | shares   4,094,974    
Subsequent Event [Member] | Southwest Bancshares Inc [Member]        
Subsequent Event [Line Items]        
Business acquisition, equity interest issued or issuable, number of shares | shares 19,371,499      
Subsequent Event [Member] | Stellar Bancorp, Inc        
Subsequent Event [Line Items]        
Number of banking offices | BankingOffices 52      
Payments to acquire businesses in cash $ 578,660