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Schedule 2-Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2012
Schedule 2-Valuation and Qualifying Accounts | Schedule 2—Valuation and Qualifying Accounts For the years ended December 31, 2012, 2011 and 2010:
|  |  |  |  | Additions |  |  |  |  |  |  |
(US$ in thousands) Provisions from assets to which they apply: |  | Balance at beginning of year |  |  | Charged to cost and expenses |  |  | Charged (credited) to other accounts |  |  | Deductions/ Other |  |  | Balance at end of year |
2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 9,376 |  |  | $ | 13,117 |  |  | $ | (201 | ) |  | $ | (6,104 | ) |  | $ | 16,188 |
Deferred tax valuation allowance |  |  | 19,115 |  |  |  | 7,010 |  |  |  | — |  |  |  | — |  |  |  | 26,125 |
2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 6,676 |  |  | $ | 11,475 |  |  | $ | (520 | ) |  | $ | (8,255 | ) |  | $ | 9,376 |
Deferred tax valuation allowance |  |  | 21,023 |  |  |  | (1,908 | ) |  |  | — |  |  |  | — |  |  |  | 19,115 |
2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts receivable |  | $ | 6,584 |  |  | $ | 8,757 |  |  | $ | — |  |  | $ | (8,665 | ) |  | $ | 6,676 |
Deferred tax valuation allowance |  |  | 17,239 |  |  |  | 3,784 |  |  |  | — |  |  |  | — |  |  |  | 21,023 |

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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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