v3.26.1
Acquisitions and Divestitures - Schedule of the Assets Acquired and Liabilities Assumed, Including Preliminary Purchase Price Allocation (Details) - USD ($)
$ in Thousands
 5 Months Ended 6 Months Ended 12 Months Ended
Feb. 13, 2026
Jun. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Assets Acquired:          
Goodwill   $ 834,495 $ 834,495 $ 367,387 $ 367,387
Purchase Price:          
Goodwill     467,108 $ 0  
MidWestOne          
Assets Acquired:          
Cash and cash equivalents $ 166,000 166,000 166,000    
Investment securities 1,117,000 1,115,000 1,115,000    
Loans 4,462,000 4,387,000 4,387,000    
ACL-Loans (51,000) (64,000) (64,000)    
Premises and equipment 87,000 76,000 76,000    
BOLI 100,000 100,000 100,000    
Goodwill 70,000 0 0    
Other intangibles 20,000 123,000 123,000    
Other assets 132,000 145,000 145,000    
Total assets 6,103,000 6,048,000 6,048,000    
Liabilities Assumed:          
Deposits 5,323,000 5,321,000 5,321,000    
Borrowings 91,000 93,000 93,000    
Other liabilities 74,000 70,000 70,000    
Total liabilities $ 5,488,000 5,484,000 5,484,000    
Net assets acquired   564,000 $ 564,000    
Assets Acquired:          
Cash and cash equivalents   0      
Investment securities   (2,000)      
Loans   (75,000)      
ACL-Loans   (13,000)      
Premises and equipment   (11,000)      
BOLI   0      
Goodwill   (70,000)      
Other intangibles   103,000      
Other assets   13,000      
Total assets   (55,000)      
Liabilities Assumed:          
Deposits   (2,000)      
Borrowings   2,000      
Other liabilities   (4,000)      
Total liabilities   $ (4,000)      
Purchase Price:          
Nicolet common stock issued (in shares) 6,641,428        
Value of Nicolet common stock consideration $ 1,031,000        
Goodwill $ 467,000