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Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Financial Instruments
Net gains (loss) from changes in the fair value of derivatives	$ (8,100)	$ 5,000	$ (1,000)	$ 2,400
Mortgage servicing rights	16,201	17,567	$ 34,659	32,879
Swaps
Derivative Financial Instruments
Derivative, maturity term			3 months
Derivative swap default credit			5 years
Swaps | Other Income | Agency Business
Derivative Financial Instruments
Realized gain (loss) on derivatives	(600)	5,700	$ 1,000	23,600
Unrealized gains (losses) on derivatives	$ 1,300	$ (2,000)	$ (3,100)	$ (100)
Swaps | Minimum
Derivative Financial Instruments
Derivative swap rate period			5 years
Swaps | Maximum
Derivative Financial Instruments
Derivative swap rate period			10 years

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Amount of revenue recorded for the mortgage servicing rights obtained from sold loans.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of unrealized gain (loss) recognized in income for derivative asset (liability) after deduction of derivative liability (asset), measured at fair value using unobservable input (level 3) and still held.

+ References

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- Definition

The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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