v3.26.1
BUSINESS COMBINATIONS (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 01, 2026
Nov. 01, 2025
Jun. 23, 2025
Feb. 29, 2024
Dec. 31, 2021
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Business Combination [Line Items]                
Other Investments           $ 137,018   $ 129,564
Total liabilities assumed             $ 0  
Business Combination, Bargain Purchase, Gain Recognized, Amount           (8,892) $ 0  
Westfield Bank                
Business Combination [Line Items]                
Cash consideration     $ 260,000 $ 260,000        
Business Combination, Consideration Transferred, Equity Interest     $ 64,400   $ 64,450      
Cash   $ 72,814            
Business Combination, Recognized Asset Acquired, Available for sale Securities   301,007            
Other Investments   25,491            
Loans, net of ACL   1,571,531            
Premises and equipment   6,026            
Intangible Assets   1,105            
Business Combination, Recognized Asset Acquired, Other Asset, Current   103,513            
Total assets acquired   2,128,552            
Business Combinations, Deposits   1,790,442            
Long-term borrowings   1,920            
Business Combinations, FHLB advances   80,000            
Other liabilities   23,627            
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Liabilities, Excluding Earn Out   1,895,989            
Total liabilities assumed           156    
Net identifiable assets   232,563            
Goodwill   91,887            
Westfield Bank | Core deposits                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived   47,065            
BankFinancial                
Business Combination [Line Items]                
Cash consideration $ 6              
Business Combination, Consideration Transferred, Equity Interest 149,648              
Total purchase consideration 149,654              
Cash 12,724              
Other Short-Term Investments 493,646              
Business Combination, Recognized Asset Acquired, Available for sale Securities 138,332              
Other Investments 7,500              
Loans, net of ACL 264,121              
Premises and equipment 22,210              
Intangible Assets 295              
Business Combination, Recognized Asset Acquired, Other Asset, Current 28,559              
Total assets acquired 1,408,726              
Business Combinations, Deposits 1,209,437              
Long-term borrowings 17,936              
Business Combinations, FHLB advances 10,048              
Other liabilities 12,759              
Total liabilities assumed 1,250,180         1,250,180    
Net identifiable assets 158,546              
Business Combination, Bargain Purchase, Gain Recognized, Amount (8,892)         $ (8,892)    
Goodwill   $ 9,000            
BankFinancial | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations                
Business Combination [Line Items]                
Loans, net of ACL 408,347              
BankFinancial | Core deposits                
Business Combination [Line Items]                
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived $ 32,992              
Summit Funding Group                
Business Combination [Line Items]                
Total purchase consideration         $ 324,450