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Schedule II-Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2012
Schedule II-Valuation and Qualifying Accounts | Schedule II—Valuation and Qualifying Accounts (in thousands)
|  | Balance at Beginning of Period |  |  | Charged to Expenses |  |  | Deductions |  |  | Translation Adjustments |  |  | Balance at End of Period |
Year Ended December 31, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 21,423 |  |  |  | 6,795 |  |  |  | (4,491 | ) |  |  | (2,158 | ) |  | $ | 21,569 |
Deferred tax valuation allowance |  | $ | 21,160 |  |  |  | 12,592 |  |  |  | (2,660 | ) |  |  | (109 | ) |  | $ | 30,983 |
Year Ended December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 21,569 |  |  |  | 6,673 |  |  |  | (4,370 | ) |  |  | (1,245 | ) |  | $ | 22,627 |
Deferred tax valuation allowance |  | $ | 30,983 |  |  |  | 7,745 |  |  |  | (2,308 | ) |  |  | (86 | ) |  | $ | 36,334 |
Year Ended December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 22,627 |  |  |  | 7,133 |  |  |  | (3,845 | ) |  |  | (1,063 | ) |  | $ | 24,852 |
Deferred tax valuation allowance |  | $ | 36,334 |  |  |  | 6,558 |  |  |  | (2,774 | ) |  |  | (808 | ) |  | $ | 39,310 |

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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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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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Period Type: | duration