v3.26.1
EARNINGS PER SHARE - Schedule of EPS Calculation (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Dec. 31, 2025
shares
Sep. 02, 2025
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net income $ 57,701 $ 42,485 $ 101,791 $ 86,276    
Basic earnings per share            
Allocation of distributed earnings (cash dividends declared) 162,006 0 254,574 0    
Allocation of undistributed earnings (losses) (104,305) 42,485 (152,783) 86,276    
Allocation of distributed and undistributed earnings $ 57,701 $ 42,485 $ 101,791 $ 86,276    
Basic weighted average number of shares outstanding (in shares) | shares 222,262,694 202,007,671 222,212,750 202,003,522    
Basic earnings per share (in dollars per share) | $ / shares $ 0.26 $ 0.21 $ 0.46 $ 0.43    
Diluted earnings per share            
Allocation of distributed and undistributed earnings $ 57,701 $ 42,485 $ 101,791 $ 86,276    
Dilutive effect of unvested RSUs or PSUs (in shares) | shares 190,098 59,420 172,794 59,420    
Diluted weighted average number of shares outstanding (in shares) | shares 222,452,792 202,067,091 222,385,544 202,062,942    
Diluted (in dollars per share) | $ / shares $ 0.26 $ 0.21 $ 0.46 $ 0.43    
Common Class A            
Basic earnings per share            
Allocation of distributed earnings (cash dividends declared) $ 154,205 $ 0 $ 242,315 $ 0    
Allocation of undistributed earnings (losses) (99,301) 40,252 (145,452) 81,741    
Allocation of distributed and undistributed earnings $ 54,904 $ 40,252 $ 96,863 $ 81,741    
Basic weighted average number of shares outstanding (in shares) | shares 221,148,246 200,893,223 221,098,302 200,889,074    
Basic earnings per share (in dollars per share) | $ / shares $ 0.25 $ 0.20 $ 0.44 $ 0.41    
Diluted earnings per share            
Allocation of distributed and undistributed earnings $ 54,904 $ 40,252 $ 96,863 $ 81,741    
Dilutive effect of unvested RSUs or PSUs (in shares) | shares 190,098 59,420 172,794 59,420    
Diluted weighted average number of shares outstanding (in shares) | shares 221,338,344 200,952,643 221,271,096 200,948,494    
Diluted (in dollars per share) | $ / shares $ 0.25 $ 0.20 $ 0.44 $ 0.41    
Common stock, shares outstanding (in shares) | shares 220,311,021   220,311,021   220,190,561  
Common Class A | Mechanics Bank Acquisition            
Diluted earnings per share            
Business combination, fixed exchange ratio           3,301.092
Common Class B            
Basic earnings per share            
Allocation of distributed earnings (cash dividends declared) $ 7,801 $ 0 $ 12,259 $ 0    
Allocation of undistributed earnings (losses) (5,004) 2,233 (7,331) 4,535    
Allocation of distributed and undistributed earnings $ 2,797 $ 2,233 $ 4,928 $ 4,535    
Basic weighted average number of shares outstanding (in shares) | shares 1,114,448 1,114,448 1,114,448 1,114,448    
Basic earnings per share (in dollars per share) | $ / shares $ 2.51 $ 2.00 $ 4.42 $ 4.07    
Diluted earnings per share            
Allocation of distributed and undistributed earnings $ 2,797 $ 2,233 $ 4,928 $ 4,535    
Dilutive effect of unvested RSUs or PSUs (in shares) | shares 0 0 0 0    
Diluted weighted average number of shares outstanding (in shares) | shares 1,114,448 1,114,448 1,114,448 1,114,448    
Diluted (in dollars per share) | $ / shares $ 2.51 $ 2.00 $ 4.42 $ 4.07    
Common stock, shares outstanding (in shares) | shares 1,114,448   1,114,448   1,114,448  
Common Stock, Dividend Calculation Ratio, Number Of Shares Used To Calculate Economic Rights On An As If Converted Basis | shares 10   10      
Common Class B | Mechanics Bank Acquisition            
Diluted earnings per share            
Business combination, fixed exchange ratio           330.1092