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Derivatives - Schedule of Changes in Fair Value of Derivative Assets and Liabilities (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Derivative [Line Items] |  |  |  |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net | $ 35 | $ 0 | $ 453 | $ 789
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 0 | (653) |  |
Derivative, Gain (Loss) on Derivative, Net | (17) | 0 | (43) | 789
Interest Rate Contract [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) |  |  | 0 | (653)
Interest Rate Swap [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative Instruments Designated As Hedging Instruments Interest Income | 0 | (150) | (118) | (231)
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 0 | 10 | 7 | 10
Forward Contracts [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | 0 | 33 | 0 | (29)
Derivative, Gain (Loss) on Derivative, Net | (15) | 0 | (79) | 0
Foreign Exchange [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative, Net Hedge Ineffectiveness Gain (Loss) | $ (1) | $ 11 | $ 1 | $ 8

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- Definition Derivative Instruments Designated As Hedging Instruments Interest Income + References No definition available. + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + 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 Amount of gain (loss) from the ineffectiveness of the hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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