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Other Comprehensive Loss (Other Comprehensive Loss) (Details) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Other Comprehensive Loss        
Net loss $ (27,980) $ (3,684) $ (47,859) $ (24,557)
Unrealized holding (loss) gain (1,971) (2,448) 1,332 (1,294)
Total other comprehensive loss $ (29,951) $ (6,132) $ (46,527) $ (25,851)