v3.26.3
Business Combinations - Schedule of Fair Values of Assets Acquired and Liabilities Assumed from Heritage (Details) - USD ($)
$ in Thousands
Apr. 17, 2026
Sep. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Fair value of liabilities assumed:        
Goodwill $ 334,100 $ 1,099,936 $ 765,822 $ 765,822
Heritage Commerce Corp [Member]        
Fair value consideration paid to Heritage shareholders        
Fair value of common shares issued and exchanged 840,044      
Fair value of common shares issued 129      
Cash paid 5,324      
Business Combination, Consideration Transferred, Total 845,497      
Fair Value of Assets Acquired [Abstract]        
Cash and cash equivalents 547,974      
Investment securities available-for-sale 1,016,408      
FHLB, FRB stock and other investments 32,570      
Loans 3,433,567      
Premises and equipment 6,688      
Bank owned life insurance 83,070      
Other intangible assets 116,580      
Deferred tax asset, net 74,457      
Other assets 94,250      
Total assets acquired 5,405,564      
Fair value of liabilities assumed:        
Deposits 4,752,465      
Subordinated debt 38,740      
Other liabilities 102,976      
Business Combination, Recognized Liability Assumed, Liability, Total 4,894,181      
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), Total 511,383      
Goodwill $ 334,114