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8. Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Accumulated other comprehensive income included in our Consolidated Balance Sheets and Consolidated Statements of Changes in Stockholders' Equity consists of the following components, all net of income taxes (in millions):
| December 31, 2012 |  | December 31, 2011
Foreign currency translation adjustments | $ | 173.1 |  |  | $ | 149.0 |
Other post-employment benefits adjustments | (8.1 | ) |  | 0.2 |
Net unrealized holding gains on available-for-sale investments | 109.7 |  |  | 49.3 |
Total Accumulated other comprehensive income | 274.7 |  |  | 198.5 |
Noncontrolling interests Accumulated other comprehensive loss | 0.2 |  |  | 0.2 |
Bio-Rad Accumulated other comprehensive income | $ | 274.9 |  |  | $ | 198.7 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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