Derivatives - Summary of Gains Losses on Derivative Contracts Included in Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Rate lock commitments
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income for derivatives	$ (700)	$ 500	$ (900)	$ (1,700)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income for derivatives	53,218	6,391	57,351	16,753
Not Designated as Hedging Instrument | Rate lock commitments | Commercial mortgage origination, net
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income for derivatives	(4,104)	(8,001)	(9,271)	11,842
Not Designated as Hedging Instrument | Rate lock commitments | Compensation and employee benefits
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income for derivatives	(679)	488	(903)	(1,689)
Not Designated as Hedging Instrument | Forward sale contracts
Derivative Instruments, Gain (Loss)
Gain (loss) recognized in income for derivatives	$ 58,001	$ 13,904	$ 67,525	$ 6,600