Derivative Financial Instruments - Gains And Losses On Banking Derivatives Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Recorded gain on banking derivative assets
Derivative Instruments, Gain (Loss) [Line Items]
Recorded gain (loss) on banking derivative	$ 10,700	$ 15,123	$ 15,745	$ 30,192
Recorded loss on banking derivative liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Recorded gain (loss) on banking derivative	(10,263)	(14,771)	(15,494)	(29,095)
Recorded gain on mortgage banking derivative assets
Derivative Instruments, Gain (Loss) [Line Items]
Recorded gain (loss) on banking derivative	955	3,277	651	5,189
Recorded loss on mortgage banking derivative liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Recorded gain (loss) on banking derivative	$ (3,459)	$ (2,844)	$ (3,499)	$ (16,940)