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Unaudited Quarterly Consolidated Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Quarterly Consolidated Financial Information |
| For the Quarter Ended
| March 31, 2017 |  | June 30, 2017 |  | September 30, 2017 |  | December 31, 2017
| (in thousands, except per share data)
Revenues | $ | 267,907 |  |  | $ | 313,221 |  |  | $ | 243,273 |  |  | $ | 199,112 |
Gross profit | 133,584 |  |  | 169,807 |  |  | 123,463 |  |  | 90,367 |
Income (loss) from operations | 15,582 |  |  | 29,446 |  |  | 2,685 |  |  | (30,377 | )
Net income (loss) | 11,010 |  |  | 21,960 |  |  | 1,629 |  |  | (24,361 | )
Net income (loss) attributable to common shareholders | 7,155 |  |  | 18,086 |  |  | (2,263 | ) |  | (28,272 | )
Basic income (loss) per common share | $ | 0.08 |  |  | $ | 0.21 |  |  | $ | (0.03 | ) |  | $ | (0.41 | )
Diluted income (loss) per common share | $ | 0.08 |  |  | $ | 0.20 |  |  | $ | (0.03 | ) |  | $ | (0.41 | )
| For the Quarter Ended
| March 31, 2016 |  | June 30, 2016 |  | September 30, 2016 |  | December 31, 2016
| (in thousands, except per share data)
Revenues | $ | 279,140 |  |  | $ | 323,828 |  |  | $ | 245,888 |  |  | $ | 187,417 |
Gross profit | 129,366 |  |  | 169,640 |  |  | 122,434 |  |  | 78,724 |
Income (loss) from operations | 14,243 |  |  | 20,605 |  |  | (1,215 | ) |  | (39,787 | )
Net income (loss) | 10,146 |  |  | 15,537 |  |  | (1,533 | ) |  | (40,644 | )
Net income (loss) attributable to common shareholders | 6,361 |  |  | 11,735 |  |  | (5,352 | ) |  | (44,482 | )
Basic income (loss) per common share | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | (0.07 | ) |  | $ | (0.60 | )
Diluted income (loss) per common share | $ | 0.07 |  |  | $ | 0.13 |  |  | $ | (0.07 | ) |  | $ | (0.60 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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