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Trade Accounts Receivable, Net (Tables) | 6 Months Ended
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Jun. 30, 2014
Receivables [Abstract] |
Schedule of trade accounts receivable, net | Trade accounts receivable consisted of the following:
| At June 30, |  | At December 31,
(in thousands) | 2014 |  | 2013 |  | 2013
Trade accounts receivable | $ | 141,565 |  |  | $ | 130,612 |  |  | $ | 92,413 |
Allowance for doubtful accounts | (936 | ) |  | (1,141 | ) |  | (945 | )
Allowance for sales discounts and returns | (2,826 | ) |  | (2,583 | ) |  | (1,451 | )
| $ | 137,803 |  |  | $ | 126,888 |  |  | $ | 90,017 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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