Derivatives - Gains (Losses) Included in the Consolidated Statements of Income Related to Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivatives, Fair Value [Line Items]
Amount of gain (loss) recognized in other comprehensive (loss) income, net of tax expense (benefit) of $6, $99, $(64) and $372	$ 17	$ 283	$ (180)	$ 1,057
Net tax expenses (benefits) recognized on net change in unrealized gain (loss) on hedging activities	6	99	(64)	372
Not designated as hedging
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(2,979)	7,274	(794)	23,232
Not designated as hedging | Interest rate-lock commitments
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(1,028)	2,007	179	(3,439)
Not designated as hedging | Forward commitments
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	1,031	14,432	736	52,335
Not designated as hedging | Futures contracts
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(2,521)	(9,165)	(584)	(25,700)
Not designated as hedging | Option contracts
Derivatives, Fair Value [Line Items]
Gains (losses) on derivative financial instruments	(461)	0	(1,125)	36
Designated as hedging
Derivatives, Fair Value [Line Items]
Amount of gain (loss) recognized in other comprehensive (loss) income, net of tax expense (benefit) of $6, $99, $(64) and $372	$ 17	$ 283	$ (180)	$ 1,057