Derivatives - Gains (Losses) Included in the Consolidated Statements of Income Related to Derivative Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Net tax expenses (benefits) recognized on net change in unrealized gain (loss) on hedging activities	$ 532	$ 293	$ (363)
Amount of gain (loss) recognized in other comprehensive (loss) income, net of tax expense (benefit) of $532, $293 and $(363)	1,508	831	(1,031)
Not designated as hedging
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	13,695	(9,482)	(37,543)
Not designated as hedging | Interest rate-lock commitments
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(5,764)	(27,194)	27,339
Not designated as hedging | Forward commitments
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	55,804	25,661	(73,033)
Not designated as hedging | Futures contracts
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(36,381)	(7,949)	8,151
Not designated as hedging | Option contracts
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	36	0	0
Designated as hedging
Derivatives, Fair Value [Line Items]
Amount of gain (loss) recognized in other comprehensive (loss) income, net of tax expense (benefit) of $532, $293 and $(363)	$ 1,508	$ 831	$ (1,031)