Borrowings (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
At period end:
Note Payable	$ 56,775,000	$ 53,013,000
Note Payable
At period end:
Note Payable	56,775,000	53,013,000
Interest rate	lender's overnight cost of funds
Note Payable | Minimum
At period end:
Advance rate to secure note payable (as a percent)	50.00%
Note Payable | Maximum
At period end:
Maturity period from any particular date of determination	364 days
Advance rate to secure note payable (as a percent)	85.00%
Note Payable | Servicing advances
At period end:
Note Payable	3,823,000	4,905,000
Assets pledged to secure notes	6,865,000	7,430,000
Advance amount to secure note payable	17,000,000
Note Payable | MSRs
At period end:
Note Payable	52,952,000	48,108,000
Assets pledged to secure notes	226,588,000	100,957,000
Advance amount to secure note payable	$ 100,000,000