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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Debt Securities, Held-To-Maturity, Interest Receivable

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

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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The price per share of the conversion feature embedded in the debt instrument.

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

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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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Amount of assets classified as other.

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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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Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

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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 - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Proceeds from sale of available-for-sale debt securities, including legacy securities		$ 102,100	$ 96,700	$ 202,700
Gross gains from sale of securities		300	2,400	2,900
Gross losses from sale of securities		600	1,300	1,800
Securities transferred from available for sale to held to maturity	$ 210,800
Securities transferred from available for sale to held to maturity, net realized gains	$ 800
Unrealized losses		(20,857)	(2,098)
Fair value of mortgage backed securities of government sponsored entities		1,144,606	405,437
Other assets of Federal Home Loan Bank and Federal Reserve Bank		34,400
Accrued interest receivable on AFS debt securities		3,400	3,200
Accrued interest receivable on HTM debt securities		1,000	400
Other assets		$ 201,857	$ 162,214
Shares held (in shares)		58,504,250	55,243,226
Common Class B \| Visa
Debt Securities, Available-for-sale [Line Items]
Shares held (in shares)		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)		$ 1.6181
Shares of class A Visa stock issued (in shares)		18,333
Mortgage-backed securities and collateralized mortgage obligations of U.S. government-sponsored entities
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		$ (20,309)	$ (1,240)
Fair value of mortgage backed securities of government sponsored entities		967,834	203,974
Held-to-maturity securities, allowance for credit loss		0
Private mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		(420)	(210)
Fair value of mortgage backed securities of government sponsored entities		$ 43,268	23,997
Average credit support percentage		23.00%
Allowance for credit losses on AFS debt securities		$ 0
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Unrealized losses		(124)	(647)
Fair value of mortgage backed securities of government sponsored entities		132,663	177,210
Allowance for credit losses on AFS debt securities		$ 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%
Collateralized loan obligations \| Standard & Poor's, AA Rating
Debt Securities, Available-for-sale [Line Items]
Number of positions held, percentage of total		25.00%
CRA - qualified debt securities
Debt Securities, Available-for-sale [Line Items]
Gross gains from sale of securities			100	$ 200
Gross losses from sale of securities		$ 200
Carrying Value
Debt Securities, Available-for-sale [Line Items]
Other assets		9,300	$ 6,500
Carrying Value \| Public deposits and secured borrowings
Debt Securities, Available-for-sale [Line Items]
Securities pledged as collateral		$ 421,400