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Schedule II - Valuation and Qualifying Accoutns | 12 Months Ended
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Dec. 31, 2012
Valuation and Qualifying Accounts Disclosure [Line Items] |
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | BIO-RAD LABORATORIES, INC. SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS Years Ended December 31, 2012, 2011, and 2010 (in thousands) Allowance for doubtful accounts receivable
|  | Balance at Beginning of Year |  | Additions Charged to Costs and Expenses |  | Deductions |  | Balance at End of Year
2012 |  | $ | 33,259 |  |  | $ | 7,597 |  |  | $ | (11,654 | ) |  | $ | 29,202 |
2011 |  | $ | 25,052 |  |  | $ | 15,112 |  |  | $ | (6,905 | ) |  | $ | 33,259 |
2010 |  | $ | 23,100 |  |  | $ | 7,984 |  |  | $ | (6,032 | ) |  | $ | 25,052 |
Valuation allowance for current and long-term deferred tax assets
|  | Balance at Beginning of Year |  | Additions Charged (Credited) to Income Tax Expense |  | Deductions |  | Other (A) |  |  | Balance at End of Year |
2012 |  | $ | 48,926 |  |  | $ | 3,700 |  |  | $ | — |  |  | $ | 230 |  |  | $ | 52,856 |
2011 |  | $ | 37,015 |  |  | $ | 6,356 |  |  | $ | — |  |  | $ | 5,555 |  |  | $ | 48,926 |
2010 |  | $ | 37,926 |  |  | $ | (2,631 | ) |  | $ | — |  |  | $ | 1,720 |  |  | $ | 37,015 |
(A) Due to acquisitions.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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