Annual report pursuant to Section 13 and 15(d)

Supplemental Information to Consolidated Financial Statements (Details)

v2.4.0.6
Supplemental Information to Consolidated Financial Statements (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Quarterly Financial Information Disclosure [Abstract]                      
Revenues $ 67,420 $ 65,998 $ 62,328 $ 70,474 $ 72,590 $ 65,813 $ 72,810 $ 79,231      
Income (loss) from operations (15,915) (54,517) (6,121) 721 7,764 10,355 16,461 23,566 (75,832) 58,146 104,623
Net loss (98,909) (111,876) (76,003) (58,853) (58,934) (55,469) (48,456) (40,479) (345,641) (203,338) (78,394)
Net loss attributable to common stockholders $ (94,324) $ (109,001) $ (73,040) $ (56,415) $ (57,811) $ (53,936) $ (47,171) $ (39,838) $ (332,780) $ (198,756) $ (76,203)
Net loss per share - basic and diluted $ (0.44) $ (0.52) $ (0.43) $ (0.43) $ (0.54) $ (0.67) $ (0.67) $ (0.60) $ (1.83) $ (2.60) $ (1.37)