Quarterly report pursuant to Section 13 or 15(d)

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

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LONG-TERM DEBT, Long-Term Debt, Net (Details) (USD $)
1 Months Ended 9 Months Ended
Aug. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Debt Instrument [Line Items]      
Long-term debt   $ 1,746,038,000 $ 1,705,261,000
Less: current portion   60,070,000 52,632,000
Total long-term debt, net   1,685,968,000 1,652,629,000
Unamortized discount   39,673,000  
May 2010 Senior Secured Credit Facility Term loan A [Member]
     
Debt Instrument [Line Items]      
Long-term debt   78,673,000 86,341,000
Unamortized discount   1,300,000 1,200,000
Maturity date   Nov. 06, 2015  
May 2010 Senior Secured Credit Facility Term loan B [Member]
     
Debt Instrument [Line Items]      
Long-term debt   865,086,000 773,773,000
Unamortized discount   14,700,000 12,200,000
Maturity date   Nov. 06, 2016  
May 2010 Senior Secured Credit Facility Revolving credit facility [Member]
     
Debt Instrument [Line Items]      
Revolving credit facility   0 0
7% Senior Notes Due 2020 [Member]
     
Debt Instrument [Line Items]      
Long-term debt   225,000,000 0
Debt related fees and expenses 6,100,000    
Cash available for general corporate purposes 12,400,000    
Interest rate, stated percentage (in hundredths)   7.00%  
Maturity date   Sep. 01, 2020  
8.125% Senior Notes Due 2018 [Member]
     
Debt Instrument [Line Items]      
Long-term debt   250,000,000 250,000,000
Interest rate, stated percentage (in hundredths)   8.125% 8.125%
10.75% Senior Notes Due 2016 [Member]
     
Debt Instrument [Line Items]      
Extinguishment of debt 287,000,000    
Long-term debt   0 305,649,000
Redemption premium and accrued interest 19,500,000    
Unamortized premium     18,700,000
Interest rate, stated percentage (in hundredths) 10.75%   10.75%
2.875% Convertible Senior Notes Due 2027 [Member]
     
Debt Instrument [Line Items]      
Long-term debt   196,363,000 187,627,000
Unamortized discount   23,600,000 32,400,000
Interest rate, stated percentage (in hundredths)   2.875% 2.875%
Other Long Term Debt [Member]
     
Debt Instrument [Line Items]      
Long-term debt   $ 130,916,000 $ 101,871,000