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Derivatives - Credit Value Adjustment Recorded Related to Notional Amount of Derivatives Outstanding (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Not Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Credit value adjustment | $ (2,792) | $ (272)
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 631,446 | 587,275
Not Designated as Hedging Instrument [Member] | Interest Rate Cap [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 66,527 | 87,188
Not Designated as Hedging Instrument [Member] | Interest Rate Collar [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 35,354 | 35,354
Not Designated as Hedging Instrument [Member] | Credit Default Swap, Buying Protection [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 220,280 | 164,632
Not Designated as Hedging Instrument [Member] | Credit Default Swap, Selling Protection [Member] |  |
Derivative [Line Items] |  |
Derivative, Sold Protection Notional Amount | (78,522) | (69,011)
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 47,874 | 25,460
Designated as Hedging Instrument [Member] |  |
Derivative [Line Items] |  |
Fair value adjustment | (3,665) | 801
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 70,000 | 70,000
Designated as Hedging Instrument [Member] | Forward Contracts [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 65,000 | 30,000
Fair value adjustment | (483) | (63)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 2,119 | 4,789
Fair value adjustment | $ (5) | $ (41)

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- Definition Derivative, Sold Protection Notional Amount + References No definition available. + Details
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- Definition Amount of credit risk valuation adjustment to derivative liabilities to properly reflect the credit quality of the entity. + References No definition available. + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + 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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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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- Details
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