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Financing Receivables Sold, Carrying Amount

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Income Taxes Examination Likelihood Of Realization On Settlement Percentage

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Maximum loan to value ratio.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Threshold period for when financing receivable is considered past due to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

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Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

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Amount, before tax, of adjustment from accumulated other comprehensive income (loss) for amortization of gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from transfer to investment in debt security measured at amortized cost (held-to-maturity).

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Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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Amount of cash inflow from sale of 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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Discount rate from fair value on purchase date that participants pay for shares.

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Purchase price of common stock expressed as a percentage of its fair value.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Significant Accounting Policies and Basis of Presentation - Narrative (Detail) $ in Thousands			1 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($)	Jan. 01, 2020 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Swap position contract	Dec. 31, 2021 USD ($) Swap contract position	Dec. 31, 2020 USD ($)	Dec. 31, 2014	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Average reserve balances required to be maintained with federal reserve bank				$ 0	$ 0
Proceeds from sales of investment securities available for sale				983,575	689,856	$ 387,810
Transfer of investment securities available for sale to held to maturity			$ 500,200	$ 500,174	0	0
Unrealized losses recorded in AOCI upon transfer to held to maturity			$ 50,000
Carrying value of consumer loans sold	$ 521,800
Contractual payment of principal duration (days)				90 days
Contractual terms for loans (months)				6 months
Maximum loan to value ratio				80.00%
Threshold period past due, writeoff				120 days
Goodwill and other intangibles				$ 3,629	3,736
FHLB, Federal Reserve Bank, and other restricted stock				74,196	64,584
Federal Home Loan Bank stock				$ 38,000	35,800
Percentage of tax position that will be realized or sustained upon examination				50.00%
Shareholders' equity				$ 1,402,961	1,366,217	1,117,086		$ 1,052,795
Cumulative effect of change in accounting principle		$ 144,200		130,924	137,804	144,176		56,379
Allowance for credit losses on lending-related commitments				$ 3,000	$ 2,100
Variable Interest Entity, Not Primary Beneficiary
Derivative [Line Items]
Asset-backed securities collateralized by loans sold	$ 400,000
Interest-only GNMA securities
Derivative [Line Items]
Proceeds from sales of investment securities available for sale						15,400
Debt securities, realized gain						1,000
Accounting Standards Update 2016-13
Derivative [Line Items]
Initial allowance on loans purchased with credit deterioration		200
Financing receivable, purchased with credit deterioration, discount		300
Interest rate swaps \| Not Designated as Hedging Instrument
Derivative [Line Items]
Number of interest rate swaps \| Swap				141	153
Derivative notional amount				$ 1,300,000	$ 1,400,000
Interest rate swaps \| Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Number of interest rate swaps \| contract				0	0
Derivative notional amount					$ 850,000
Interest rate swaps \| Fair Value Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Number of interest rate swaps \| position				3	16
Derivative notional amount				$ 22,500	$ 80,500
Credit contracts \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative notional amount				$ 142,000	129,900
ESPP
Derivative [Line Items]
Purchase price under employee stock purchase plan (percent)				85.00%			85.00%
Purchase price under employee stock purchase plan, discount (percent)				15.00%			15.00%
Retained Earnings
Derivative [Line Items]
Shareholders' equity				$ 924,134	$ 705,732	$ 438,581		381,519
Cumulative Effect, Period of Adoption, Adjustment
Derivative [Line Items]
Shareholders' equity								(61,475)
Net deferred tax (asset) liability		(21,500)
Cumulative effect of change in accounting principle		79,800						79,829
Allowance for credit losses on lending-related commitments		3,400
Cumulative Effect, Period of Adoption, Adjustment \| Retained Earnings
Derivative [Line Items]
Shareholders' equity		$ (61,500)						$ (61,475)