Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative assets	$ 34,050	$ 33,019
Derivative liabilities	$ 26,918	$ 40,781
Derivative blended weighted average pullthrough rate (in percent)	79.00%	76.00%
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets	$ 34,050	$ 33,019
Derivative liabilities	26,918	40,781
Not Designated as Hedging Instrument | IRLCs
Derivative [Line Items]
Derivative assets	25,359	29,623
Derivative liabilities	5,443	2,933
Notional Amount	9,339,930	6,264,727
Not Designated as Hedging Instrument | FLSCs
Derivative [Line Items]
Derivative assets	8,691	3,396
Derivative liabilities	21,475	37,848
Notional Amount	$ 12,851,505	$ 10,469,975