Fair Value Measurements (Narratives) (Details)	9 Months Ended
	Sep. 30, 2013
Fair Value Value Measurements
Fair value measurements, valuation technique	We determined the estimated fair value of our deferred acquisition fees based on an estimate of discounted cash flows using two significant unobservable inputs, which are the leverage adjusted unsecured spread and an illiquidity adjustment of 380 bps and 75 bps, respectively. Significant increases or decreases to these inputs in isolation would result in a significant change in the fair value measurement.
Deferred acquisition fees payable
Fair Value Inputs
Leverage adjusted unsecured spread	3.80%
Illiquidity Adjustment	0.75%