Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

The average effective interest rate during the reporting period.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Note 9 - Subordinated Debentures (Details Textual) - USD ($) $ in Millions			1 Months Ended		12 Months Ended
	Jun. 10, 2020	Jan. 11, 2018	Jun. 30, 2015	Dec. 31, 2003	Dec. 31, 2023	Dec. 31, 2022	May 01, 2023	Dec. 19, 2003
Subordinated Debt [Member] \| The 2020 Notes [Member]
Debt Instrument, Face Amount	$ 75.0
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Subordinated Debt [Member] \| The Notes [Member]
Debt Instrument, Face Amount		$ 75.0	$ 50.0
Subordinated Debt [Member] \| LIBOR - London Interbank Offered Rate [Member] \| The Notes [Member]
Debt Instrument, Basis Spread on Variable Rate		2.84%	3.93%
Debt Instrument, Interest Rate During Period			4.16%
Subordinated Debt [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| The 2020 Notes [Member]
Debt Instrument, Basis Spread on Variable Rate	5.605%
Center Bancorp Statutory Trust II [Member]
Debt Instrument, Face Amount					$ 5.0
Center Bancorp Statutory Trust II [Member] \| Subordinated Debt [Member]
Debt Instrument, Face Amount					$ 5,000.0	$ 5,000.0		$ 5.0
Proceeds from Issuance of Debt				$ 5.2
Debt Instrument, Interest Rate, Effective Percentage					8.50%
Center Bancorp Statutory Trust II [Member] \| Subordinated Debt [Member] \| LIBOR - London Interbank Offered Rate [Member]
Debt Instrument, Basis Spread on Variable Rate				2.85%		2.85%
Center Bancorp Statutory Trust II [Member] \| Subordinated Debt [Member] \| Secured Overnight Financing Rate (SOFR) [Member]
Debt Instrument, Basis Spread on Variable Rate					2.85%
Debt Instrument, Interest Rate, Effective Percentage					2.85%		0.26161%