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13. Subsequent Event (Notes)	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	13.    SUBSEQUENT EVENT In April 2014, we acquired GnuBIO, Inc. (GnuBIO) for approximately $40 million in cash at the closing date, exclusive of contingent consideration related to the achievement of certain milestones, which per the acquisition agreement could total as much as $70 million. The acquisition will be included in our Clinical Diagnostics segment's results of operations from the acquisition date and will be accounted for as a business combination. The amount of acquisition-related cost was minimal as Bio-Rad primarily represented itself during the acquisition process. The goodwill to be recorded will not be deductible for income tax purposes. We are presently unable to report the fair value assessment of the net assets acquired, as more time is needed to complete the information transfer from the seller and include all information into a valuation of individual assets and liabilities, including the contingent consideration. We believe GnuBIO's innovative DNA workflow is well-suited for the clinical diagnostics sequencing market and will leverage our leadership role in the area of droplet digital PCR.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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