Annual report pursuant to Section 13 and 15(d)

Schedule I - Debt, Future Principal Payments (Detail)

v2.4.0.6
Schedule I - Debt, Future Principal Payments (Detail) (USD $)
Dec. 31, 2011
Long-term Debt, by Maturity [Abstract]  
Total $ 3,000,423,000
2013 to 2014 550,000,000
2015 to 2016 1,665,500,000
Convertible Senior Unsecured Notes [Member]
  
Long-term Debt, by Maturity [Abstract]  
Total 204,630,000
2013 to 2014 0
2015 to 2016 0
Parent [Member]
  
Condensed Financial Statements, Captions [Line Items]  
Future cash payment for interest 18,600,000
Long-term Debt, by Maturity [Abstract]  
Total 647,857,000 [1]
2012 647,857,000 [1]
2013 to 2014 0 [1]
2015 to 2016 0 [1]
Thereafter 0 [1]
Parent [Member] | Loans Payable [Member] | Notes - Affiliates [Member]
  
Long-term Debt, by Maturity [Abstract]  
Total 443,227,000 [1]
2012 443,227,000 [1]
2013 to 2014 0 [1]
2015 to 2016 0 [1]
Thereafter 0 [1]
Parent [Member] | Convertible Senior Unsecured Notes [Member]
  
Long-term Debt, by Maturity [Abstract]  
Total 204,630,000 [1]
2012 204,630,000 [1]
2013 to 2014 0 [1]
2015 to 2016 0 [1]
Thereafter $ 0 [1]
[1] Based on the total debt balance, scheduled maturities and interest rates in effect at December 31, 2011, our cash payments for interest would be $18.6 million in 2012.