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Quarterly Financial Data | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data | Note 22—Quarterly Financial Data (Unaudited) Summarized quarterly data for the years ended December 31, 2017 and 2016 consist of the following (in thousands, except per share amounts):
|  | Year Ended December 31, 2017
|  | Q1 |  | Q2 |  | Q3 |  | Q4
Revenues |  | $ | 605,253 |  |  | $ | 564,245 |  |  | $ | 610,506 |  |  | $ | 663,062 |
Operating income (loss) |  | 29,189 |  |  | 16,451 |  |  | 26,716 |  |  | 21,602 |
Net income (loss) |  | 27,786 |  |  | 7,006 |  |  | 18,824 |  |  | 19,005 |
Net income (loss) per share |  |  |  |  |  |  |  |
Basic |  | $ | 0.60 |  |  | $ | 0.15 |  |  | $ | 0.41 |  |  | $ | 0.41 |
Diluted |  | $ | 0.58 |  |  | $ | 0.15 |  |  | $ | 0.41 |  |  | $ | 0.41 |
|  | Year Ended December 31, 2016
|  | Q1 |  | Q2 |  | Q3 |  | Q4
Revenues |  | $ | 377,812 |  |  | $ | 413,793 |  |  | $ | 510,305 |  |  | $ | 563,136 |
Operating income (loss) |  | (19,719 | ) |  | (3,313 | ) |  | (21,784 | ) |  | 28,325 |
Net income (loss) |  | (18,673 | ) |  | (13,088 | ) |  | (27,761 | ) |  | 13,687 |
Net income (loss) per share |  |  |  |  |  |  |  |
Basic |  | $ | (0.46 | ) |  | $ | (0.32 | ) |  | $ | (0.67 | ) |  | $ | 0.30 |
Diluted |  | $ | (0.46 | ) |  | $ | (0.32 | ) |  | $ | (0.67 | ) |  | $ | 0.30 |

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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 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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