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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Net Income (Loss) Attributable to Parent | $ 1,758,675 | $ 365,614 | $ 122,249
Foreign currency translation adjustments | (36,953) | (112,857) | 76,050
Other post-employment benefits adjustments, net of tax | (7,363) | 7,549 | (3,767)
Net unrealized holding gains on available-for-sale investments, net of tax | 3,926 | (1,187) | 248,745
Other comprehensive income, net of tax | (40,390) | (106,495) | 321,028
Comprehensive income attributable to Bio-Rad | $ 1,718,285 | $ 259,119 | $ 443,277

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