Accrued Expense, Business Combination Consideration

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- Definition

Average reserve balances maintained with federal reserve bank.

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- Definition

Deferred Income Tax Expense (Benefit), Federal Tax Reform

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Delinquency period for loan charge offs.

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Discontinued period of principal or interest payment of contractual payment.

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FDIC Indemnification Asset, Payments for Early Termination

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Financing Receivable Impairment Modification Minimum Period

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- Definition

Income Taxes Examination Likelihood Of Realization On Settlement Percentage

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- Definition

Maximum loan to value ratio.

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- Definition

Number of share based compensation plans.

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Those fees and commissions generated from corporate and retail banking related operations of the Broker Dealer.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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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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No definition available.

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- Definition

The number of derivative instruments of a particular group held by the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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-Subparagraph (SX 210.9-03.10)
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- Definition

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

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- Definition

Amount of income earned from credit card services (including late, over limit, and annual fees) and debit card services (including interchange fees, annual fees and other fees). Excludes interest income earned on credit card balances and transactions.

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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- Definition

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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- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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- Definition

The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date.

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The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.

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- Definition

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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Significant Accounting Policies and Basis of Presentation - Narrative (Detail)				3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) derivative Swap	Jul. 11, 2016 USD ($)	Jun. 15, 2016 USD ($)	Sep. 30, 2016 Segment	Dec. 31, 2016 USD ($) derivative Segment Swap	Jun. 30, 2016 Segment	Dec. 31, 2017 USD ($) derivative CompensationPlan Swap	Dec. 31, 2016 USD ($) derivative Swap	Dec. 31, 2015 USD ($)	Dec. 31, 2014	Nov. 17, 2017 USD ($)
Derivative [Line Items]
Average reserve balances maintained with federal reserve bank	$ 149,300,000				$ 149,300,000		$ 164,700,000	$ 149,300,000
Held to maturity securities	0				0		0	0
Deferred cost of bank loans							$ 0
Contractual payment of principal duration (days)							90 days
Contractual terms for loans (months)							6 months
Payments for termination to FDIC		$ 1,400,000
Operating lease, carrying value of assets							$ 21,700,000
Operating lease, accumulated depreciation							$ 500,000
Operating lease, term							5 years 4 months 24 days
Maximum loan to value ratio							80.00%
Delinquency period for loan charge-offs (days)							120 days
Goodwill and other intangibles	17,621,000				17,621,000		$ 16,295,000	17,621,000
FHLB, Federal Reserve Bank, and other restricted stock	68,408,000				68,408,000		105,918,000	68,408,000
Federal Home Loan Bank stock	51,300,000				$ 51,300,000		$ 83,700,000	51,300,000
Percentage of tax position will realized or sustained upon examination							50.00%
Number of share-based compensation plans \| CompensationPlan							4
Number of reportable segments (segment) \| Segment				2	2	1
Stranded tax effects in AOCI from federal tax reform							$ 300,000
Cumulative effect adjustment							1,000,000
Unrealized gains (losses) on available-for-sale securities							2,520,000	2,505,000	$ (6,328,000)
Interchange and card revenue							41,509,000	24,681,000	$ 557,000
Accounting Standards Update 2014-09
Derivative [Line Items]
Interchange and card revenue							3,600,000	1,300,000
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative notional amount	$ 325,000,000				$ 325,000,000			$ 325,000,000
Number of interest rate swaps \| derivative	4				4			4
Interest Rate Swap \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative notional amount	$ 716,600,000.0				$ 716,600,000.0		$ 800,500,000.0	$ 716,600,000.0
Number of interest rate swaps \| Swap	76				76		76	76
Interest Rate Swap \| Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
Derivative notional amount	$ 325,000,000				$ 325,000,000		$ 550,000,000	$ 325,000,000
Number of interest rate swaps \| derivative	4				4		9	4
Credit contracts \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative notional amount	$ 44,900,000.0				$ 44,900,000.0		$ 80,500,000.0	$ 44,900,000.0
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%
Higher One, Inc's Disbursements Business
Derivative [Line Items]
Escrow amount			$ 5,000,000				$ 5,000,000	$ 20,000,000
Increase in goodwill	$ 1,000,000
Flagship \| Spinoff \| Common Stock
Derivative [Line Items]
Escrow deposit											$ 1,000,000
Flagship \| Spinoff \| Common Stock \| Cash and Cash Equivalents
Derivative [Line Items]
Escrow deposit							1,000,000
Equity securities
Derivative [Line Items]
Unrealized gains (losses) on available-for-sale securities							$ 1,000,000