Transactions with FAFC (Details) (USD $)	6 Months Ended			6 Months Ended	0 Months Ended		3 Months Ended	6 Months Ended		0 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 Common Stock [Member]	Aug. 23, 2012 Investor [Member]	Jun. 01, 2010 Investor [Member]	Jun. 30, 2012 Investor [Member] Office_Buildings	Jun. 30, 2013 Investor [Member]	Jun. 30, 2012 Investor [Member] Office_Buildings	Jun. 01, 2010 Investor [Member] Common Stock [Member]	Jun. 30, 2012 Related Parties Of FAFC [Member]	Jun. 30, 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	$ 3,300,000
Separation and Distribution Agreement amount						250,000,000
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	28,744,000			227,700,000
Number of office buildings							2		2
Rent expense, operating leases								1,100,000	2,200,000
Revenues from transactions with related party											3,800,000	7,500,000
Expenses from transactions with related party											$ 300,000	$ 600,000