Basis of Condensed Consolidated Financial Statements (Details) (USD $)	9 Months Ended			12 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Dec. 31, 2010 September 30, 2011 [Member]	May 26, 2010 FAFC [Member]	Sep. 30, 2011 Common Stock [Member] FAFC [Member]	Sep. 30, 2011 FAFC [Member]	Sep. 30, 2010 FAFC [Member]	Sep. 30, 2011 FAFC [Member]	Sep. 30, 2011 FAFC [Member] Promissory Note To FAFC [Member] Notes Payable, Other Payables [Member]	Sep. 30, 2011 Common Stock [Member]
Restricted Cash and Investments, Noncurrent	$ 20,924,000		$ 21,095,000
Payments of Debt Issuance Costs	22,080,000	14,776,000
Prior Period Reclassification Adjustment				21,095,000
Common stock, par value (in dollars per share)	$ 0.00001		$ 0.00001		$ 1.00
Debt Instrument, Face Amount										19,900,000
FAFC Liabilities	0
Seperation and Distribution Agreement Amount									250,000,000
Stockholders Equity Spin Off Shares Issued						12,933,265
Stock Issued During Period, Value, Other									242,600,000
Increase (Decrease) in Due to Related Parties, Current	(18,678,000)	9,108,000							7,400,000
Stock Repurchased During Period, Shares								4,000,000			9,516,000
Payments for Repurchase of Common Stock	176,512,000	0					75,800,000
Price Of Shares Purchased							$ 18.95
Corporate Costs Up To Separation Date Included In Operating Expense		$ 69,000,000