Annual report pursuant to Section 13 and 15(d)

Schedule I - Debt, Current and Long-term Debt (Detail)

v2.4.0.6
Schedule I - Debt, Current and Long-term Debt (Detail) (USD $)
Dec. 31, 2011
Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]    
Current debt (including affiliate) $ 502,630,000 $ 0
Current debt, net of discount 492,724,000 0
Long-term debt (including affiliate) 2,497,793,000 2,980,787,000
Total long-term debt, (including affiliate), net of discount 2,474,711,000 2,927,509,000
Long-term Debt Discount [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Debt Instrument, Unamortized Discount 23,082,000 53,278,000
Convertible Senior Unsecured Notes [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Current debt (including affiliate) 204,630,000 0
Long-term debt (including affiliate) 0 204,630,000
Convertible Senior Unsecured Notes [Member] | Current Debt Discount [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Debt Instrument, Unamortized Discount 9,906,000 0
Convertible Senior Unsecured Notes [Member] | Long-term Debt Discount [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Debt Instrument, Unamortized Discount 0 25,501,000
Parent [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Current debt (including affiliate) 647,857,000 0
Current debt, net of discount 637,951,000 0
Long-term debt (including affiliate) 0 609,665,000
Total long-term debt, (including affiliate), net of discount 0 584,164,000
Parent [Member] | Loans Payable [Member] | Notes - Affiliates [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Current debt (including affiliate) 443,227,000 0
Long-term debt (including affiliate) 0 405,035,000
Parent [Member] | Convertible Senior Unsecured Notes [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Current debt (including affiliate) 204,630,000 0
Long-term debt (including affiliate) 0 204,630,000
Parent [Member] | Convertible Senior Unsecured Notes [Member] | Current Debt Discount [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Debt Instrument, Unamortized Discount (9,906,000) 0
Parent [Member] | Convertible Senior Unsecured Notes [Member] | Long-term Debt Discount [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Debt Instrument, Unamortized Discount $ 0 $ (25,501,000)