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Schedule of Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Components Of Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |
Foreign currency translation adjustment | $ 5,514 |  |  | $ (3,038) |  |  | $ (6,592) | $ 7,264
Unrealized (loss) gain on cash flow hedging instruments | (570) |  |  | 351 |  |  | 1,297 | (1,093)
Income tax benefit (expense) | 154 |  |  | (96) |  |  | (349) | 295
Unrealized (loss) gain on cash flow hedging instruments, net of tax | (416) |  |  | 255 |  |  | 948 | (798)
Reclassification of gain on cash flow hedging instruments into earnings | (697) |  |  | (191) |  |  | (946) | (742)
Income tax expense | 188 |  |  | 51 |  |  | 255 | 200
Reclassification of gain on cash flow hedging instruments into earnings, net of tax | (509) |  |  | (140) |  |  | (691) | (542)
Other comprehensive income (loss) | $ 4,589 | $ 8,356 | $ (19,280) | $ (2,923) | $ 4,652 | $ 4,195 | $ (6,335) | $ 5,924

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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 + Details
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