Derivative Financial Instruments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) derivative	Dec. 31, 2022 USD ($) derivative	Dec. 31, 2021 derivative
Junior subordinated debentures	$ 47,850	$ 50,507
Notional amount, Assets	1,619,026	1,084,955
Short term advances and brokered CD's	826,800	871,500
Derivative instruments	721,000
Customer [Member]
Derivative instruments	360,500	110,600
Bank [Member]
Derivative instruments	360,500	110,600
Customer and Bank [Member]
Derivative instruments		221,200
Cash Flow Hedging [Member]
Amount reclassified from accumulated other comprehensive loss to interest expense	25,400	$ 300
Amount to be reclassified from the accumulated comprehensive income (loss) into earnings	$ 19,700
Number of derivative contracts terminated | derivative	0	4	0
Notional amount of derivative instruments terminated		$ 170,800
Net gain		6,000
Income recognized	$ 4,700	700
Gain (loss) on termination of swaps		6,000
Not Designated as Hedging Instrument [Member]
Notional amount, Assets	722,000	221,200
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Notional amount, Assets	825,800	871,500
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Amount of hedged item	902,500	273,600
Interest Rate Swap [Member]
Notional amount, Assets	902,500	273,600
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Notional amount, Assets	361,486	110,598
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Notional amount, Assets	555,000	700,750
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Notional amount, Assets	702,540	$ 273,607
Portfolio Layer Hedges on Closed Portfolio of Securities Available for Sale [Member]
Notional amount, Assets	200,000
Portfolio Layer Hedges on Closed Portfolio of Securities Available for Sale [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	283,195
Notional amount	200,000
Portfolio Layer Hedges on Closed Portfolio of Loans [Member]
Notional amount, Assets	500,000
Portfolio Layer Hedges on Closed Portfolio of Loans [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	2,590,087
Notional amount	$ 500,000