Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Details 5)

v2.4.0.6
Long-Term Debt (Details 5) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Summary of the effect on financial statement balances due to extinguishment of 5.0 % Convertible Notes          
Cash (cash paid to repurchase 5.0% Convertible Notes)     $ 164,896 $ 64,576 $ 249,190
Paid-in capital (stock issuance of 4.1 million shares at $16.6554 per share)     67,536    
Paid-in capital (conversion option tax effect)     662 627  
Loss on debt extinguishment (allocated expenses) 17,100 2,600 (19,713) (1,107) (7,665)
Paid-In Capital [Member]
         
Summary of the effect on financial statement balances due to extinguishment of 5.0 % Convertible Notes          
Paid-in capital (stock issuance of 4.1 million shares at $16.6554 per share)     67,495    
Paid-in capital (conversion option tax effect)     662 627  
5.0% Convertible Senior Notes [Member]
         
Summary of the effect on financial statement balances due to extinguishment of 5.0 % Convertible Notes          
5.0% Convertible Notes (write-off of principal)     155,050    
Other assets (write-off of unamortized debt discount and deferred loan costs) (16,797)   (16,797)    
Cash (cash paid to repurchase 5.0% Convertible Notes)     (164,896)    
Loss on debt extinguishment (fair value less carrying value)     18,473    
Deferred income tax liability     (662)    
Loss on debt extinguishment (allocated expenses)     1,240    
Cash (allocated expenses related to debt extinguishment)     (1,240)    
Cash (allocated expenses related to stock issuance)     (333)    
5.0% Convertible Senior Notes [Member] | Paid-In Capital [Member]
         
Summary of the effect on financial statement balances due to extinguishment of 5.0 % Convertible Notes          
Paid-in capital (stock issuance of 4.1 million shares at $16.6554 per share)     (67,869)    
Paid-in capital (conversion option)     76,039    
Paid-in capital (conversion option tax effect)     662    
Paid-in capital (allocated expenses related to stock issuance)     $ 333