Quarterly report pursuant to Section 13 or 15(d)

Earnings/ (Loss) Per Share - Schedule of Calculation of Basic and Diluted Loss Per Common Share (Details)

v3.5.0.2
Earnings/ (Loss) Per Share - Schedule of Calculation of Basic and Diluted Loss Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Earnings Per Share, Basic and Diluted [Abstract]        
Net income (loss) $ 45,928 $ (477,568) $ (265,503) $ (993,112)
Less portion allocated to nonvested shares 1,689      
Net income (loss) allocated to common shares $ 44,239 $ (477,568) $ (265,503) $ (993,112)
Weighted average common shares outstanding 92,243 75,932 81,748 75,900
Basic and diluted earnings (loss) per common share $ 0.48 $ (6.29) $ (3.25) $ (13.08)
Shares excluded due to being anti-dilutive (weighted-average)   1,913 3,833 1,945