Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Details 4)

v2.4.0.6
Long-Term Debt (Details 4) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
5.0% Convertible Senior Notes [Member]
Sep. 30, 2012
5.0% Convertible Senior Notes [Member]
Recorded carrying values of associated accounts prior to extinguishment of 5.0 % Convertible Notes        
5.0% Convertible Notes $ 629,385 $ 547,619   $ 155,050
Unamortized debt discount and deferred loan costs     (16,797) (16,797)
Net of Discount/Premium, Total $ 629,385     $ 138,253