Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Unaudited) (Details)

v3.10.0.1
Selected Quarterly Financial Data (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Summary of quarterly financial data                      
Total revenues $ 221,852 $ 249,815 $ 263,685 $ 254,914 $ 160,983 $ 246,040 $ 292,601 $ 266,382 $ 990,266 $ 966,006 $ 1,117,494
Total costs and expenses 311,866 283,279 268,793 297,525 318,614 293,805 318,432 311,597 1,161,463 1,242,448 1,214,045
Net income (loss) $ (76,070) $ (27,655) $ (6,201) $ (43,114) $ (217,914) $ (35,917) $ (16,916) $ (34,503) $ (153,040) $ (305,250) $ (48,359)
Earnings (loss) per share, basic and diluted (in dollars per share) $ (0.13) $ (0.05) $ (0.01) $ (0.08)              
Earnings (loss) per share, diluted (in dollars per share)         $ (0.39) $ (0.06) $ (0.03) $ (0.06) $ (0.27) $ (0.55) $ (0.09)
Earnings (loss) per share, diluted (in dollars per share)         $ (0.39) $ (0.06) $ (0.04) $ (0.06) $ (0.27) $ (0.55) $ (0.10)
Adjustment Related To Prior Quarter Revenue                      
Summary of quarterly financial data                      
Total revenues $ 3,900