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Supplementary Financial Data Supplementary Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2013
Supplementary Financial Data [Abstract] |
Supplemental Financial Data [Table Text Block] | The following tables set forth our selected consolidated financial and operating data for the quarterly periods indicated.
| December 31, 2013 | September 30, 2013 | June 30, 2013 | March 31, 2013
(In thousands, except per share amounts) | (Unaudited) | (Unaudited) | (Unaudited) | (Unaudited)
Revenue | $ | 336,307 |  | $ | 275,195 |  | $ | 234,553 |  | $ | 190,727 |
Gross margin | $ | 67,030 |  | $ | 54,909 |  | $ | 46,216 |  | $ | 38,314 |
Net income | $ | 13,043 |  | $ | 124,092 |  | $ | 6,045 |  | $ | 2,397 |
Earnings per common share: |  |  |  |  |  |  |  |
Basic | $ | 0.54 |  | $ | 5.09 |  | $ | 0.25 |  | $ | 0.11 |
Diluted | $ | 0.48 |  | $ | 4.22 |  | $ | 0.25 |  | $ | 0.11 |
Weighted average common shares outstanding: |  |  |  |  |  |  |  |
Basic | 24,358 |  | 24,358 |  | 24,271 |  | 22,273 |
Diluted | 29,783 |  | 29,745 |  | 24,646 |  | 22,688 |
| December 31, 2012 | September 30, 2012 | June 30, 2012 | March 31, 2012
(In thousands, except per share amounts) | (Unaudited) | (Unaudited) | (Unaudited) | (Unaudited)
Revenue | $ | 250,911 |  | $ | 208,875 |  | $ | 170,994 |  | $ | 131,125 |
Gross margin | $ | 47,638 |  | $ | 43,114 |  | $ | 33,411 |  | $ | 23,700 |
Net loss | $ | 5,015 |  | $ | 8,314 |  | $ | 3,204 |  | $ | (3,186 | )
Earnings (loss) per common share: |  |  |  |  |  |  |  |
Basic | $ | 0.23 |  | $ | 0.43 |  | $ | 0.17 |  | $ | (0.17 | )
Diluted | $ | 0.23 |  | $ | 0.42 |  | $ | 0.17 |  | $ | (0.17 | )
Weighted average common shares outstanding: |  |  |  |  |  |  |  |
Basic | 21,545 |  | 19,434 |  | 18,833 |  | 18,772 |
Diluted | 21,961 |  | 20,273 |  | 19,031 |  | 18,772 |

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