Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

v3.7.0.1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]    
Net income (loss) $ 71,985 $ (88,930)
Weighted average number of shares of common shares outstanding 345,653,060 346,197,193
Weighted average restricted stock shares 2,910,870 3,238,822
Basic and diluted weighted average shares outstanding 348,563,930 349,436,015
Basic and diluted earnings (loss) per weighted average common share $ 0.21 $ (0.25)