Concentration of Risk (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Concentration Risk [Line Items]      
Cash and cash equivalents, FDIC insurance limit 250,000    
Ashford University      
Concentration Risk [Line Items]      
Actual percentage of revenue from Title IV programs 83.40% 85.60% 86.40%
University of the Rockies      
Concentration Risk [Line Items]      
Actual percentage of revenue from Title IV programs 88.30% 87.60% 87.30%