Consolidated Statements of Comprehensive (Loss) Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Net (loss) income attributable to common stockholders $ (13,072) $ (193,738) $ (12,849) $ (12,632) $ 4,992 $ (9,345) $ 10,743 $ (3,863) $ (232,291) $ 2,527 $ (23,006)
Add back: income attributable to non-controlling interest                     (1,456)
Net income (loss)                 (232,291) 2,527 (24,462)
Other comprehensive loss, net of tax:                      
Foreign currency translation gain                     21
Reclassification of net loss from sales of available-for sale-securities included in earnings                   (8)  
Unrealized loss on available-for-sale securities                     (112)
Total other comprehensive loss, net of tax                   (8) (91)
Comprehensive (loss) income, net of tax                 $ (232,291) $ 2,519 $ (24,553)