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v3.23.1

Investment Securities - Narrative (Details) shares in Thousands, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) security shares | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($)
Schedule of Investments [Line Items] |  |  |
Debt securities, available-for-sale, accrued Interest | $ 30.0 |  | $ 33.0
Debt Securities, held-to-maturity, accrued interest | 17.0 |  | 19.0
Write off of accrued interest receivable | $ 0.0 | $ 0.0 |
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, number of positions | security | 337 |  |
Investment securities available for sale, allowance for credit loss | $ 4.0 |  |
Debt securities, held-to-maturity, threshold period past due | 30 days |  |
Securities past due | $ 10,381.0 |  | 10,279.0
Held-to-maturity securities, nonaccrual | 0.0 |  | 0.0
Federal Home Loan Bank stock | 393.0 |  | 197.0
Nonmarketable equity securities | 62.0 |  | 58.0
Amortization method qualified affordable housing project investments | 1,660.0 |  | 598.0
Total Past Due |  |  |
Schedule of Investments [Line Items] |  |  |
Securities past due | 0.0 |  | 0.0
Asset Pledged as Collateral |  |  |
Schedule of Investments [Line Items] |  |  |
Investment securities, aggregate carrying value, pledged as collateral | $ 4,160.0 |  | $ 4,200.0
Visa, Inc | Class B Common Stock |  |  |
Schedule of Investments [Line Items] |  |  |
Investment owned (in shares) | shares | 354 |  |
Residential Mortgage Backed Securities or Government Agency Securities |  |  |
Schedule of Investments [Line Items] |  |  |
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, number of positions | security | 315 |  |
Corporate bonds |  |  |
Schedule of Investments [Line Items] |  |  |
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, number of positions | security | 22 |  |

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