Derivative Instruments and Hedging Activities - Cash Flow Hedge Agreements (Details) - Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
2023 Interest Rate Swaps
Derivative [Line Items]
Derivative Liabilities	$ 97	$ 0	$ 2,710
Amount of (loss) gain recognized in AOCI	3,068	0	(2,553)
Amount of loss reclassified from AOCI interest expense	455	0	157
Interest Rate Swap, Subordinated Trust Securities
Derivative [Line Items]
Derivative Assets	5,393	4,843	4,998
Amount of (loss) gain recognized in AOCI	153	(800)	(1,355)
Amount of loss reclassified from AOCI interest expense	$ (242)	$ (198)	$ (907)