Business Concentrations and Credit Risk (Details)	9 Months Ended
	Sep. 30, 2013
Risks and Uncertainties [Abstract]
Concentration Risk, Customer	For the three and nine months ended September 30, 2013 and 2012, no individual client accounted for 10% or more of consolidated revenue. As of September 30, 2013, no individual client accounted for more than 10% of our gross accounts receivable balance. As of December 31, 2012, one individual client accounted for more than 10% of our gross accounts receivable balance.