Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Earnings/ (Loss) Per Share - Schedule of Calculation of Basic and Diluted Earnings (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Earnings Per Share, Basic and Diluted [Abstract]    
Net income (loss) $ 24,299 $ (190,509)
Less portion allocated to nonvested shares 1,058  
Net income (loss) allocated to common shares $ 23,241 $ (190,509)
Weighted average common shares outstanding 137,513 76,428
Basic and diluted earnings (loss) per common share $ 0.17 $ (2.49)
Shares excluded due to being anti-dilutive (weighted-average)   3,528