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Equity (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 21, 2016 | Dec. 07, 2016 | Aug. 12, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Class of Stock [Line Items] |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  |  | $ 938,268 | $ 4,844 | $ 4,877
Value of common stock from issuance of private placement for an asset acquisition | [1] |  |  |  | $ 437,194 | $ 0 | $ 0
August Issuance [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  |  | 18.4 |  |  |
Sale of Stock, Price Per Share |  |  |  | $ 30.00 |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 530,900 |  |  |
December Issuance [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  | 10.9 |  |  |  |
Sale of Stock, Price Per Share |  |  | $ 38.25 |  |  |  |
Proceeds from Issuance of Common Stock |  |  | $ 403,200 |  |  |  |
QStar Acquisition 2016 [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Private Issuance Of Common Stock For An Acquisition |  | 13.4 |  |  |  |  |
Value of common stock from issuance of private placement for an asset acquisition | [2] | $ 437,194 |  |  |  |  |
[1] | Refer to Note 3 - Acquisitions, Divestitures, and Assets Held for Sale and Note 15 - Equity for additional discussion.
[2] | The Company issued approximately 13.4 million shares of common stock, par value $0.01 per share, in a private placement to the sellers in the QStar Acquisition on December 21, 2016. The equity consideration was valued on this date using Level 1 and Level 2 inputs with a discount applied due to the lack of marketability in the near term in accordance with the Lock-Up and Registration Rights Agreement that prohibits the sale of such stock until no earlier than the 90th day after issuance.

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