v2.4.0.8
Borrowings (Principal Amounts And Related Unamortized Discount On Convertible Notes) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Borrowings [Abstract]    
Principal amount of convertible notes $ 27,540 $ 90,960
Unamortized discount on convertible notes (2,821) (10,429)
Net carrying value $ 24,719 $ 80,531