Derivative Financial Instruments - Fair Value of Hedged Items (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Notional amount, Assets	$ 2,094,770	$ 1,619,026
Notional amount, Liability	367,195	831,236
Basis adjustments	6,334	949
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio of Loans [Member]
Notional amount, Assets	2,541,669	2,590,087
Notional amount	500,000
Cumulative amount, Hedged Liabilities	(6,334)	(949)
Basis adjustments	6,300	900
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio of Securities Available for Sale [Member]
Notional amount, Assets	272,523	283,195
Notional amount	200,000
Cumulative amount, Hedged Liabilities	(5,051)	(2,254)
Basis adjustments	5,100	2,300
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio [Member]
Notional amount, Assets	2,814,192	2,873,282
Cumulative amount, Hedged Liabilities	(11,385)	(3,203)
Designated as Hedging Instrument [Member] | Loans Receivable [Member]
Notional amount, Assets	182,442	192,137
Cumulative amount, Hedged Liabilities	(20,151)	(17,379)
Multi-family Residential Portfolio Segment [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	78,986	81,471
Cumulative amount, Hedged Liabilities	(10,911)	(9,078)
Commercial Real Estate [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	63,748	70,198
Cumulative amount, Hedged Liabilities	(5,300)	(4,778)
Commercial Business Portfolio Segment [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	39,708	40,468
Cumulative amount, Hedged Liabilities	$ (3,940)	$ (3,523)