v3.26.3
Note 14 - Subordinated Debentures (Details Textual) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
May 15, 2025
Jul. 03, 2023
Dec. 31, 2003
Sep. 30, 2026
Dec. 19, 2003
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]       Secured Overnight Financing Rate (SOFR) [Member]  
Subordinated Debt [Member] | The 2025 Notes [Member]          
Debt Instrument, Face Amount $ 200.0        
Debt Instrument, Interest Rate, Stated Percentage 8.125%        
Subordinated Debt [Member] | Secured Overnight Financing Rate (SOFR) [Member] | The 2025 Notes [Member]          
Debt Instrument, Basis Spread on Variable Rate 4.415%        
Center Bancorp Statutory Trust II [Member] | Subordinated Debt [Member]          
Debt Instrument, Face Amount       $ 5,000.0 $ 5.0
Proceeds from Issuance of Debt     $ 5.2    
Debt Instrument, Basis Spread on Variable Rate     2.85%    
Debt Instrument, Interest Rate, Effective Percentage       6.95%  
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]     Secured Overnight Financing Rate (SOFR) [Member]    
Center Bancorp Statutory Trust II [Member] | Subordinated Debt [Member] | Tenor Spread Adjustment [Member]          
Debt Instrument, Basis Spread on Variable Rate   0.26161%   0.2661%  
Center Bancorp Statutory Trust II [Member] | Subordinated Debt [Member] | Secured Overnight Financing Rate (SOFR) [Member]          
Debt Instrument, Basis Spread on Variable Rate       2.85%