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Summarized Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2019
Summarized Quarterly Financial Data (Unaudited) |
Summarized Quarterly Financial Data (Unaudited) | 21. Summarized Quarterly Financial Data (Unaudited) Quarterly financial information for 2018 and 2019 is as follows (in thousands except per share data): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quarter
2018 |  | First |  | Second |  | Third |  | Fourth
Revenues | ​ | $ | 116,469 | ​ | $ | 114,668 | ​ | $ | 160,945 | ​ | $ | 242,103
Income from operations | ​ |  | 11,328 | ​ |  | 4,184 | ​ |  | (57,127) | ​ |  | 18,875
Net income (loss) | ​ |  | 9,467 | ​ |  | 5,188 | ​ |  | (52,781) | ​ |  | 22,455
Net income (loss) per share: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.88 | ​ | $ | 0.48 | ​ | $ | (2.97) | ​ | $ | 1.05
Diluted | ​ | $ | 0.84 | ​ | $ | 0.46 | ​ | $ | (2.97) | ​ | $ | 1.02
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quarter
2019 |  | First |  | Second |  | Third |  | Fourth
Revenues | ​ | $ | 246,508 | ​ | $ | 245,110 | ​ | $ | 241,747 | ​ | $ | 263,772
Income from operations | ​ |  | 25,723 | ​ |  | 27,596 | ​ |  | 20,000 | ​ |  | 37,213
Net income | ​ |  | 11,500 | ​ |  | 24,409 | ​ |  | 16,692 | ​ |  | 28,537
Net income per share: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.53 | ​ | $ | 1.12 | ​ | $ | 0.77 | ​ | $ | 1.31
Diluted | ​ | $ | 0.52 | ​ | $ | 1.10 | ​ | $ | 0.75 | ​ | $ | 1.29
​

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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