Transactions with FAFC (Details) (USD $)	3 Months Ended			3 Months Ended	0 Months Ended		3 Months Ended		0 Months Ended	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013 Common Stock [Member]	Aug. 23, 2012 FAFC [Member]	Jun. 01, 2010 FAFC [Member]	Mar. 31, 2013 FAFC [Member]	Mar. 31, 2012 FAFC [Member] Office_Buildings	Jun. 01, 2010 FAFC [Member] Common Stock [Member]	Mar. 31, 2012 Related Parties Of FAFC [Member]	May 26, 2010 FAFC [Member]
Investments in and Advances to Related Parties [Line Items]
Common stock, par value	$ 0.00001		$ 0.00001								$ 1.00
Reduction in other operating expenses								$ 1,700,000
Separation and Distribution Agreement amount						250,000,000
Number of Years to dispose of shares						5 years
Separation shares issued									12,933,265
Stock issued during period, value						242,600,000
Cash payment to related party						7,400,000
Stock repurchased during period, shares				(2,881,000)	10,433,265
Payments to repurchase of common stock	75,676,000	0			227,700,000
Number of office buildings								2
Rent expense, operating leases							1,100,000
Revenues from transactions with related party										3,700,000
Expenses from transactions with related party										$ 300,000