v3.26.1
MERGER - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 01, 2024
USD ($)
$ / shares
shares
Jun. 30, 2026
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
$ / shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
Jun. 28, 2024
$ / shares
Business Combination [Line Items]                
Common stock, stated value (in usd per share) | $ / shares   $ 0.05205   $ 0.05205   $ 0.05205    
Goodwill   $ 69,751   $ 69,751   $ 69,751 $ 68,106  
Adjustments to acquired goodwill       0   $ 1,645    
Subordinated notes                
Business Combination [Line Items]                
Amortization of debt issuance costs and discounts   1,600   1,600        
Subordinated notes | Codorus Valley Unsecured Subordinated Notes                
Business Combination [Line Items]                
Unamortized discount   $ 2,400   $ 2,400        
Fixed rate of interest   4.50%   4.50%   4.50%    
Amortization of debt issuance costs and discounts   $ 1,700 $ 90 $ 1,800 $ 182      
Codorus Valley                
Business Combination [Line Items]                
Consideration transferred $ 233,400              
Goodwill $ 49,400   $ 51,000   51,000      
Adjustments to acquired goodwill         $ 1,600      
Estimated useful life (in years) 40 years              
Operating lease assets acquired $ 5,100              
Operating lease liabilities acquired 5,100              
Finance lease asset acquired 392              
Finance lease liability acquired 392              
Fair value adjustments of operating lease assets (1,100)              
Fair value adjustments of finance lease assets (133)              
Adjustments to deposits 3,200              
Codorus Valley | Subordinated notes                
Business Combination [Line Items]                
Unamortized discount 2,400              
Codorus Valley | Junior Subordinated Debt                
Business Combination [Line Items]                
Unamortized discount 2,700              
Codorus Valley | Premises and Equipment                
Business Combination [Line Items]                
Adjustment to premises and equipment 6,600              
Codorus Valley | Core deposit intangible                
Business Combination [Line Items]                
Other intangible assets, net 40,100              
Codorus Valley | Customer relationship                
Business Combination [Line Items]                
Other intangible assets, net $ 10,600              
Expected life (in years) 10 years              
Common Stock | Codorus Valley                
Business Combination [Line Items]                
Business combination, shares of common stock to be received by acquiree for number of shares outstanding ratio 0.875              
Codorus Valley | Subordinated notes                
Business Combination [Line Items]                
Debt redeemed amount   $ 31,000   $ 31,000        
Codorus Valley | Common Stock | Codorus Valley                
Business Combination [Line Items]                
Common stock, stated value (in usd per share) | $ / shares $ 2.50              
Orrstown Financial Services Inc | Codorus Valley                
Business Combination [Line Items]                
Common stock, no par value (usd per share) | $ / shares $ 0              
Shares issued for common stock (in shares) | shares 8,532,038              
Share price (in usd per share) | $ / shares               $ 27.36