Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT, Long-Term Debt, Net (Details)

v2.4.0.6
LONG-TERM DEBT, Long-Term Debt, Net (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Line of Credit Facility [Line Items]      
Total including premium and discount $ 1,715,688 $ 1,731,864  
Less: current portion 52,632 54,150  
Total long-term debt, net 1,663,056 1,677,714  
Unamortized discount 35,332    
Debt Instrument [Line Items]      
Unamortized premium 18,669    
Senior Notes Due 2018 8.125 percent [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 250,000 250,000  
Debt Instrument [Line Items]      
Interest rate, stated percentage (in hundredths) 8.125% 8.125%  
Maturity date May 15, 2018 May 15, 2018  
Senior Notes Due 2016 10.75 percent [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 305,649 309,727  
Debt Instrument [Line Items]      
Unamortized premium 18,669 22,700  
Interest rate, stated percentage (in hundredths) 10.75% 10.75%  
Maturity date 2016 2016  
Convertible Senior Notes Due 2027 2.875 percent [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 187,627 176,927  
Unamortized discount 32,400 43,100  
Debt Instrument [Line Items]      
Interest rate, stated percentage (in hundredths) 2.875% 2.875% 2.875%
Maturity date 2027 2027  
Effective interest rate on the liability component of the notes (in hundredths) 9.70% 9.70% 9.70%
Other Long Term Debt [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 101,871 108,540  
May 2010 Senior Secured Credit Facility - Term loan A [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 87,500 96,250  
May 2010 Senior Secured Credit Facility - Term loan B [Member]
      
Line of Credit Facility [Line Items]      
Total including premium and discount 783,041 790,420  
Unamortized discount   3,600  
May 2010 Senior Secured Credit Facility - Revolving credit facility [Member]
      
Line of Credit Facility [Line Items]      
Unamortized discount $ 3,000