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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Net Income (Loss) Attributable to Parent | $ 82,150 | $ 22,976 | $ 48,578 | $ 35,489 | $ 12,220 | $ 342,571 | $ 30,022 | $ 33,190 | $ 189,193 | $ 418,003 | $ 47,234
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |  |
Fair value of adjustments to available-for-sale securities |  |  |  |  |  |  |  |  | 433 | (299) | (263)
Comprehensive income |  |  |  |  |  |  |  |  | 189,626 | 417,704 | 46,971
Accumulated Other Comprehensive Loss, Net |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) Attributable to Parent |  |  |  |  |  |  |  |  | 0 |  |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |  |
Fair value of adjustments to available-for-sale securities |  |  |  |  |  |  |  |  | $ 433 | $ (299) | $ (263)

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591552-111686 + Details
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