Transactions with FAFC (Details) (USD $)	0 Months Ended		3 Months Ended
	Apr. 11, 2011	Jun. 01, 2010	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011	Apr. 05, 2011
Investments in and Advances to Related Parties [Line Items]
Loss Contingency Accrual, at Carrying Value			$ 0
Liability for Uncertain Tax Positions, Noncurrent			56,300,000		19,300,000
Payments for Repurchase of Common Stock			0	15,082,000
Increase (Decrease) in Due to Related Parties, Current			975,000	(21,065,000)
Investor [Member]
Investments in and Advances to Related Parties [Line Items]
Reduction In Other Operating Expenses			1,700,000	1,700,000
Due from Related Parties			41,300,000		34,400,000
Separation and Distribution Agreement Amount		250,000,000
Stock Repurchased During Period, Shares	4,000,000
Payments for Repurchase of Common Stock	75,800,000
Price Of Shares Purchased						$ 18.95
Operating Leases, Rent Expense			1,100,000	1,100,000
Stock Issued During Period, Value, Other		242,600,000
Increase (Decrease) in Due to Related Parties, Current		7,400,000
Related Parties Of FAFC [Member]
Investments in and Advances to Related Parties [Line Items]
Related Party Transaction, Revenues from Transactions with Related Party			3,700,000	3,900,000
Related Party Transaction, Expenses from Transactions with Related Party			300,000	2,500,000
Common Stock [Member] | Investor [Member]
Investments in and Advances to Related Parties [Line Items]
Stockholders Equity Separation Shares Issued		12,933,265
FAFC Indemnification Under Tax Sharing Agreement Member [Member]
Investments in and Advances to Related Parties [Line Items]
Liability for Uncertain Tax Positions, Noncurrent			$ 47,600,000		$ 10,400,000