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Loans Held for Investment - Schedule of Allowance for Credit Losses (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | $ 227.7 | $ 226.1 | $ 227.7 | $ 220.1 | $ 220.1
Provision for credit losses | 9.0 | 11.7 | 14.3 | 26.9 |
Loans Charged-Off(2) | (16.3) | (14.1) | (27.3) | (23.0) |
Recoveries Collected | 2.8 | 2.7 | 5.4 | 5.4 |
Ending balance | 232.8 | 224.6 | 232.8 | 224.6 | 227.7
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) | 18.6 | 9.9 | 27.0 | 22.1 |
Commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | (5.7) |  | (7.6)
Agricultural |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 4.2 | 2.4 | 4.4 | 3.2 | 3.2
Provision for credit losses | 1.2 | 0.2 | 0.7 | (0.9) |
Loans Charged-Off(2) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0
Recoveries Collected | 0.0 | 0.1 | 0.3 | 0.4 |
Ending balance | 5.4 | 2.7 | 5.4 | 2.7 | 4.4
Residential |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | (0.6) |  | (0.6)
Agricultural |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | 0.0 |  | 0.0
Total real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 152.9 | 147.5 | 160.1 | 138.7 | 138.7
Provision for credit losses | (3.3) | 20.4 | (8.0) | 33.8 |
Loans Charged-Off(2) | (10.1) | (10.0) | (13.3) | (14.8) |
Recoveries Collected | 0.2 | 0.8 | 0.9 | 1.0 |
Ending balance | 139.7 | 158.7 | 139.7 | 158.7 | 160.1
Indirect consumer |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | (4.5) |  | (7.3)
Direct and advance lines |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | (1.9) |  | (4.1)
Credit card |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Loans Charged-Off(2) |  |  | (1.4) |  | (2.6)
Total consumer loans |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 12.6 | 21.8 | 13.0 | 23.3 | 23.3
Provision for credit losses | 8.6 | (6.2) | 11.0 | (5.5) |
Loans Charged-Off(2) | (4.0) | (3.3) | (7.8) | (6.7) |
Recoveries Collected | 1.3 | 1.4 | 2.3 | 2.6 |
Ending balance | 18.5 | 13.7 | 18.5 | 13.7 | 13.0
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning balance | 58.0 | 54.4 | 50.2 | 54.9 | 54.9
Provision for credit losses | 12.1 | (4.5) | 23.3 | (5.3) |
Loans Charged-Off(2) | (2.2) | (0.8) | (6.2) | (1.5) | (3.4)
Recoveries Collected | 1.3 | 0.4 | 1.9 | 1.4 |
Ending balance | $ 69.2 | $ 49.5 | $ 69.2 | $ 49.5 | $ 50.2

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