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v3.23.1

Securities - Narrative (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) security | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) security
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
AFS and HTM, accrued interest | $ 39,100,000 |  | $ 41,800,000
Available-for-sale debt securities fair value, Total | $ 6,101,391,000 |  | $ 5,783,741,000
Number of available-for-sale debt securities in an unrealized loss position | security | 555 |  | 559
Debt Securities, AFS, allowance for credit loss | $ 0 |  | $ 0
Provision (reversal of provision) for credit losses | 0 | $ 0 |
HTM securities allowance for credit loss | 0 |  |
Asset Pledged as Collateral |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
AFS and HTM debt securities carrying value | $ 7,340,000,000 |  | $ 794,200,000
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
Number of available-for-sale debt securities in an unrealized loss position | security | 259 |  | 263
Non-agency mortgage-backed securities |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
Number of available-for-sale debt securities in an unrealized loss position | security | 100 |  | 100
Corporate debt securities |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
Available-for-sale debt securities fair value, Total | $ 516,253,000 |  | $ 526,274,000
Number of available-for-sale debt securities in an unrealized loss position | security | 67 |  | 68
U.S. government-sponsored enterprises debt securities |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
Available-for-sale debt securities fair value, Total | $ 463,860,000 |  | $ 311,539,000
U.S. Treasury securities |  |  |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items] |  |  |
Available-for-sale debt securities fair value, Total | $ 818,455,000 |  | $ 606,203,000
Number of available-for-sale debt securities in an unrealized loss position | security | 17 |  | 15

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