Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Information (Unaudited) (Details)

v3.6.0.2
Quarterly Financial Information (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]                      
Revenue $ 3,173 $ 20,616 $ 2,966 $ 3,831 $ 49,996 $ 15,225 $ 12,645 $ 13,316 $ 30,586 $ 91,182 $ 69,045
Operating Income (Loss) (7,707) 6,624 (10,737) (9,340) 11,610 288 (3,414) 50,471 (21,160) 58,955 (42,974)
Net Income (Loss) Available to Common Stockholders, Basic $ 45,601 $ 3,789 $ 890,154 $ (22,241) $ (28,401) $ (19,295) $ (7,809) $ 5,318 $ 917,303 $ (50,187) $ (134,605)
Earnings Per Share, Basic $ 0.25 $ 0.02 $ 6.31 $ (0.22) $ (0.28) $ (0.19) $ (0.08) $ 0.05 $ 6.03 $ (0.49) $ (1.52)
Earnings Per Share, Diluted $ 0.25 $ 0.02 $ 6.28 $ (0.22) $ (0.28) $ (0.19) $ (0.08) $ 0.05 $ 6.00 $ (0.49) $ (1.52)