Loans Held for Sale - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Nonaccrual loans	$ 33.2		$ 39.8
Transfer of loans from held-for-sale to held for investment	0.0	$ 19.8
Loans held for sale	76.5		79.9
Transfer of loans to held-for-sale	3.1	$ 0.0
Agricultural
Debt Securities, Available-for-sale [Line Items]
Nonaccrual loans	26.8		29.3
Loans held for sale	59.1		62.5
Transfer of loans to held-for-sale	0.0
Proceeds from Collection of Loans Held-for-sale	5.6
Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option	2.2
Commercial construction
Debt Securities, Available-for-sale [Line Items]
Nonaccrual loans	6.4		10.5
Loans held for sale	6.4		10.5
Transfer of loans to held-for-sale	0.0
Proceeds from Collection of Loans Held-for-sale	0.0
Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option	(4.1)
Land Acquisition And Development Construction Financing Receivable [Member]
Debt Securities, Available-for-sale [Line Items]
Loans held for sale	0.0		$ 0.0
Transfer of loans to held-for-sale	3.1
Proceeds from Collection of Loans Held-for-sale	3.1
Increase (Decrease) in Fair Value Adjustments on Other Assets (Liabilities) Carried at Fair Value under Fair Value Option	$ 0.0

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

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Amount of increase (decrease) in fair value adjustment on other assets (liabilities) carried at fair value under the fair value option on the statement of cash flows of Federal Home Loan Banks (FHLBanks).

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Fair value portion of mortgage loans held-for-sale.

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The cash inflow from collection of repayments from borrowers on loans that are held with the intention to resell in the near future; includes mortgages and other types of loans.

+ References

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Value of loans held-for-sale transferred to loans held in the entity's portfolio in noncash transactions.

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