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Quarterly Financial Information | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Information | Quarterly Financial Information The following table summarizes the unaudited quarterly results of operations for 2017 and 2016 (amounts in thousands, except per share data):
| 2017 Quarters Ended (unaudited) |  |
| March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Revenues | $ | 153,416 |  |  | $ | 246,412 |  |  | $ | 304,219 |  |  | $ | 253,911 |  |  | $ | 957,958 |
Gross profit | 9,287 |  |  | 25,205 |  |  | 30,631 |  |  | 23,969 |  |  | 89,092 |
Income (loss) before income taxes and earnings attributable to noncontrolling interests | (1,859 | ) |  | 4,661 |  |  | 9,170 |  |  | 3,963 |  |  | 15,935 |
Net income (loss) attributable to Sterling common stockholders | (2,257 | ) |  | 3,662 |  |  | 7,132 |  |  | 3,080 |  |  | 11,617 |
Net income (loss) per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |
Basic | $ | (0.09 | ) |  | $ | 0.14 |  |  | $ | 0.27 |  |  | $ | 0.11 |  |  | $ | 0.44 |
Diluted | $ | (0.09 | ) |  | $ | 0.13 |  |  | $ | 0.26 |  |  | $ | 0.11 |  |  | $ | 0.43 |
| 2016 Quarters Ended (unaudited) |  |
| March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Revenues | $ | 126,567 |  |  | $ | 189,582 |  |  | $ | 205,629 |  |  | $ | 168,345 |  |  | $ | 690,123 |
Gross profit | 3,548 |  |  | 15,543 |  |  | 16,622 |  |  | 6,345 |  |  | 42,058 |
Income (loss) before income taxes and earnings attributable to noncontrolling interests | (7,336 | ) |  | 2,570 |  |  | 3,196 |  |  | (5,754 | ) |  | (7,324 | )
Net income (loss) attributable to Sterling common stockholders | (7,328 | ) |  | 2,023 |  |  | 2,415 |  |  | (6,348 | ) |  | (9,238 | )
Net income (loss) per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |
Basic and diluted | $ | (0.37 | ) |  | $ | 0.09 |  |  | $ | 0.10 |  |  | $ | (0.25 | ) |  | $ | (0.40 | )
The Company’s operating revenues tend to be somewhat higher in the summer months which are typically due to warmer and dryer weather conditions. Our second and third quarter revenues and results of operations typically reflect these seasonal trends. However, from time to time, the Company’s operating results are significantly affected by certain transactions or events that management believes are not indicative or representative of our results. As of April 4th, Tealstone's results are included in the results for the remainder of 2017.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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