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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table presents the weighted-average number of common shares outstanding used in the calculation of basic and diluted income per share:
|  | Three Months Ended March 31,
|  | 2014 |  | 2013
Numerator (in thousands): |  |  |  |
Basic |  |  |  |
Net income (loss) |  | $ | (24,421 | ) |  | $ | 5,113 |
Undistributed earnings allocated to participating securities |  | — |  |  | (140 | )
Total dividends declared / paid |  | (6,255 | ) |  | — |
Dividends attributable to common stockholders |  | 6,048 |  |  | — |
Net income (loss) attributable to common stockholders – basic |  | $ | (24,628 | ) |  | $ | 4,973 |
Diluted |  |  |  |
Net income (loss) |  | $ | (24,421 | ) |  | $ | 5,113 |
Undistributed earnings allocated to participating securities |  | — |  |  | (139 | )
Total dividends declared / paid |  | (6,255 | ) |  | — |
Dividends attributable to common stockholders |  | 6,048 |  |  | — |
Net income (loss) attributable to common stockholders – diluted |  | $ | (24,628 | ) |  | $ | 4,974 |
Denominator: |  |  |  |
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders – basic |  | 48,329,375 |  |  | 47,859,774 |
Effect of potentially dilutive securities: |  |  |  |
Common stock options and restricted stock units |  | — |  |  | 244,468 |
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders – diluted |  | 48,329,375 |  |  | 48,104,242 |
Basic net income (loss) per common share |  | $ | (0.51 | ) |  | $ | 0.10 |
Diluted net income (loss) per common share |  | $ | (0.51 | ) |  | $ | 0.10 |
Impact of the Revision to the Comparable Prior Period Earnings (Loss) Per Share Calculations Using the Two-Class Method [Table Text Block] | The impact of the revision to the comparable prior period earnings (loss) per share calculations using the two-class method were as follows:
|  | Three Months Ended March 31,
|  | 2013
Numerator (in thousands): |  |
Net income attributable to common stockholders – basic and diluted - As Reported |  | $ | 5,113 |
Net income attributable to common stockholders – basic - As Adjusted |  | $ | 4,973 |
Net income attributable to common stockholders – diluted - As Adjusted |  | $ | 4,974 |
Denominator: |  |
Weighted-average shares used in computing net income per share attributable to common stockholders – basic - As Reported |  | 47,859,774 |
Weighted-average shares used in computing net income per share attributable to common stockholders – basic - As Adjusted |  | 47,859,774 |
Weighted-average shares used in computing net income per share attributable to common stockholders – diluted - As Reported |  | 48,354,444 |
Weighted-average shares used in computing net income per share attributable to common stockholders – diluted - As Adjusted |  | 48,104,242 |
Basic net income per common share - As Reported |  | $ | 0.11 |
Basic net income per common share - As Adjusted |  | $ | 0.10 |
Diluted net income per common share - As Reported |  | $ | 0.11 |
Diluted net income per common share - As Adjusted |  | $ | 0.10 |

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- Definition Impact of the Revision to the Comparable Prior Period Earnings (Loss) Per Share Calculations Using the Two-Class Method [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of the effect of income (loss) on an entity's diluted earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1311-109256 + Details
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