Debt Securities, Available-For-Sale, Interest Receivable

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Debt Securities, Available-for-sale, Unrealized Loss Position, Average Credit Support

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Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions, Percentage Of Total

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- Definition

Debt Securities, Held-To-Maturity, Interest Receivable

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Equity Securities Without Readily Determinable Fair Value, Shares

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- Definition

Proceeds from Sale of Debt Securities, Available-for-sale, Including Legacy Securities

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Stock Issued During Period, Conversion Ratio, Equity Interests Issued and Issuable, Entity Shares Issued For Each Acquiree Share

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- Definition

Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity).

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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) transferred to investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and net income (trading).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

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The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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Amount of unrealized gain (loss) from transfer of investment in debt security measured at amortized cost (held-to-maturity), to investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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Securities - Narrative (Details) - USD ($)	3 Months Ended				9 Months Ended
Securities - Narrative (Details) - USD ($)	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of available-for-sale debt securities, including legacy securities		$ 26,000,000	$ 1,000,000			$ 57,200,000
Gross gains from sale of securities			200,000
Gross losses from sale of securities						300,000
Securities transferred from available for sale to held to maturity				$ 210,800,000
Securities transferred from available for sale to held to maturity, unrealized gains				$ 800,000
Unrealized losses on mortgage backed securities of government sponsored entities	$ 246,654,000				$ 246,654,000		$ 20,857,000
Fair value of securities in unrealized loss position	1,840,951,000				1,840,951,000		1,144,606,000
Held-to-maturity securities, allowance for credit loss	0				0
Federal Home Loan Bank and Federal Reserve stock recorded in other assets	38,200,000				38,200,000
Accrued interest receivable on AFS debt securities	5,800,000				5,800,000		3,400,000
Accrued interest receivable on HTM debt securities	1,300,000				1,300,000		1,000,000
Asset Pledged as Collateral
Debt Securities, Available-for-sale [Line Items]
Fair value of debt securities pledged as collateral	$ 387,800,000				$ 387,800,000
Common Class B \| Visa
Debt Securities, Available-for-sale [Line Items]
Shares of Visa stock held (in shares)	11,330				11,330
Common Class A \| Visa
Debt Securities, Available-for-sale [Line Items]
Conversion rate of Class A stock for each share of Class B stock (in shares)	1.6059				1.6059
Shares issued (in shares)					18,194
CRA - Qualified Mutual Fund
Debt Securities, Available-for-sale [Line Items]
Gross losses from sale of securities	$ 400,000		$ 30,000		$ 1,100,000	$ 100,000
Investment in mutual fund carried at fair value	8,200,000				8,200,000
Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses on mortgage backed securities of government sponsored entities	220,135,000				220,135,000		20,309,000
Fair value of securities in unrealized loss position	1,340,432,000				1,340,432,000		967,834,000
Allowance for credit losses on AFS debt securities	0				0
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses on mortgage backed securities of government sponsored entities	12,140,000				12,140,000		124,000
Fair value of securities in unrealized loss position	302,073,000				302,073,000		132,663,000
Allowance for credit losses on AFS debt securities	$ 0				$ 0
Collateralized loan obligations \| Standard & Poor's, AAA Rating
Debt Securities, Available-for-sale [Line Items]
Number of positions held, percentage of total	37.00%				37.00%
Collateralized loan obligations \| Standard & Poor's, AA Rating
Debt Securities, Available-for-sale [Line Items]
Number of positions held, percentage of total	36.00%				36.00%
Private mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses on mortgage backed securities of government sponsored entities	$ 11,798,000				$ 11,798,000		420,000
Fair value of securities in unrealized loss position	170,697,000				170,697,000		43,268,000
Allowance for credit losses on AFS debt securities	$ 0				$ 0
Average credit support percentage	20.00%				20.00%
Obligations of state and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Unrealized losses on mortgage backed securities of government sponsored entities	$ 2,251,000				$ 2,251,000		1,000
Fair value of securities in unrealized loss position	23,470,000				23,470,000		$ 499,000
Allowance for credit losses on AFS debt securities	$ 0				$ 0