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Derivatives - Credit Value Adjustment Recorded Related to Notional Amount of Derivatives Outstanding (Detail) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Fair Value, Net | $ (29) | $ (3)
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 370,693 | 411,645
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Fair Value, Net | 0 | (133)
Derivative, Notional Amount | 0 | 65,000
Interest Rate Cap [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 36,028 | 36,111
interest Rate Collar [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 35,354 | 0
Credit Default Swap [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 170,016 | 162,139
Interest Rate Contract [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 25,215 | 9,900
Forward Contracts [Member] | Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Fair Value, Net | (234) | (170)
Derivative, Notional Amount | 30,000 | 15,000
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Fair Value, Net | 7 | (6)
Derivative, Notional Amount | 1,797 | 1,927
Short [Member] | Credit Default Swap, Selling Protection [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 46,871 | $ 59,315

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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 + Details
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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
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- Definition 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. + References No definition available. + Details
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