Derivative Financial Instruments - Fair Value of Hedged Items (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Notional amount, Assets	$ 1,312,525	$ 1,619,026
Notional amount, Liability	1,395,922	831,236
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio of Loans [Member]
Notional amount, Assets	2,476,025	2,590,087
Notional amount	500,000	500,000
Cumulative amount, Hedged Liabilities	2,184	(949)
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio of Securities Available for Sale [Member]
Notional amount, Assets	269,135	283,195
Notional amount	200,000	200,000
Cumulative amount, Hedged Liabilities	(89)	(2,254)
Designated as Hedging Instrument [Member] | Portfolio Layer Hedges on Closed Portfolio [Member]
Notional amount, Assets	2,745,160	2,873,282
Cumulative amount, Hedged Liabilities	2,095	(3,203)
Designated as Hedging Instrument [Member] | Loans Receivable [Member]
Notional amount, Assets	185,917	192,137
Cumulative amount, Hedged Liabilities	(13,211)	(17,379)
Multi-family Residential Portfolio Segment [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	81,180	81,471
Cumulative amount, Hedged Liabilities	(7,390)	(9,078)
Commercial Real Estate [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	64,297	70,198
Cumulative amount, Hedged Liabilities	(3,295)	(4,778)
Commercial Business Portfolio Segment [Member] | Designated as Hedging Instrument [Member]
Notional amount, Assets	40,440	40,468
Cumulative amount, Hedged Liabilities	$ (2,526)	$ (3,523)