Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Reconciliation between Basic and Diluted Earnings Per Share (Details)

v3.4.0.3
Summary of Significant Accounting Policies - Reconciliation between Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Earnings Per Share [Abstract]    
Net income (loss) $ 73,229 $ (21,456)
Basic weighted-average shares outstanding 227,239,533 224,301,117
Dilutive effect of awards 872,502
Diluted weighted-average shares outstanding 228,112,035 224,301,117
Basic earnings (loss) per share (in dollars per share) $ 0.32 $ (0.10)
Diluted earnings (loss) per share (in dollars per share) $ 0.32 $ (0.10) [1]
[1] Due to a net loss, excludes 4,745,812 shares as including these would be antidilutive.