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Net Income (Loss) Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| Three months ended June 30, |  | Six months ended June 30,
In thousands except per share amounts | 2014 |  | 2013 |  | 2014 |  | 2013
Net income (loss) available to common stockholders | $ | (43,121 | ) |  | $ | (35,040 | ) |  | $ | (80,312 | ) |  | $ | (22,770 | )
Weighted average shares: |  |  |  |  |  |  |
Basic | 102,444 |  |  | 99,833 |  |  | 102,405 |  |  | 94,918 |
Effect of share based compensation plans | — |  |  | — |  |  | — |  |  | — |
Diluted | 102,444 |  |  | 99,833 |  |  | 102,405 |  |  | 94,918 |
Income (loss) per share: |  |  |  |  |  |  |
Basic | $ | (0.42 | ) |  | $ | (0.35 | ) |  | $ | (0.78 | ) |  | $ | (0.24 | )
Diluted | $ | (0.42 | ) |  | $ | (0.35 | ) |  | $ | (0.78 | ) |  | $ | (0.24 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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