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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	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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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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