Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Unaudited) (Details)

v3.6.0.2
Selected Quarterly Financial Data (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
Summary of quarterly financial data                      
Total revenues $ 275,489 $ 298,035 $ 357,100 $ 291,037 $ 276,191 $ 143,034 $ 42,429 $ 30,084 $ 1,221,661 $ 491,738 $ 91,125
Total costs and expenses 325,889 321,658 328,834 318,555 284,126 151,257 67,838 86,998 1,294,936 590,219 236,940
Net income (loss) (13,661) (14,977) 15,533 (11,978) 1,603 128,247 (43,241) (118,037) (25,083) (31,428) (174,638)
Net income (loss) attributable to common shareholders $ (13,661) $ (14,977) $ 15,533 $ (11,978) $ 1,603 $ 128,247 $ (42,766) $ (117,112) $ (25,083) $ (30,028) $ (171,666)
Earnings (loss) per share, diluted (in usd per share) $ (0.02) $ (0.03) $ 0.03 $ (0.02) $ 0.00 $ 0.26 $ (0.09) $ (0.26)      
Earnings (loss) per share, diluted (in usd per share) $ (0.04) $ (0.03) $ 0.02 $ (0.02) $ 0.00 $ 0.18 $ (0.09) $ (0.26)