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8. Accumulated Other Comprehensive Income (Notes) | 3 Months Ended
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Mar. 31, 2013
Accumulated Other Comprehensive Income [Abstract] |
accumulated other comprehensive income [Text Block] | 8. ACCUMULATED OTHER COMPREHENSIVE INCOME Changes to Accumulated other comprehensive income components are shown in the following table:
| Foreign currency translation adjustments | Other post-employment benefits adjustments | Net unrealized holding gains on available-for-sale investments | Bio-Rad Accumulated other comprehensive income | Non-controlling interests | Total Accumulated other comprehensive income
Balance at January 1, 2013 | $ | 173.3 |  | $ | (8.1 | ) | $ | 109.7 |  | $ | 274.9 |  | $ | (0.2 | ) | $ | 274.7 |
Other comprehensive (loss) income, net of income taxes before reclassifications | (34.8 | ) | 0.3 |  | 29.3 |  | (5.2 | ) | — |  | (5.2 | )
Amounts reclassified from Accumulated other comprehensive income | (0.2 | ) | — |  | (0.1 | ) | (0.3 | ) | 0.2 |  | (0.1 | )
Net Other comprehensive (loss) income, net of income taxes | (35.0 | ) | 0.3 |  | 29.2 |  | (5.5 | ) | 0.2 |  | (5.3 | )
Balance at March 31, 2013 | $ | 138.3 |  | $ | (7.8 | ) | $ | 138.9 |  | $ | 269.4 |  | $ | — |  | $ | 269.4 |
Reclassifications from Accumulated other comprehensive income for the period ended March 31, 2013 are summarized in the following table:
Details about Accumulated other comprehensive income components |  | Amount reclassified from Accumulated other comprehensive income |  | Affected line item in the statement where net income is presented
Net holding gains on available-for-sale investments |  | $ | (0.2 | ) |  | Other (income) expense, net
|  | 0.1 |  |  | Income tax expense |  |
|  | $ | (0.1 | ) |  | Net of income taxes |  |

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- Definition accumulated other comprehensive income [Text Block] + References No definition available. + Details
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