XML 52 R38.htm IDEA: XBRL DOCUMENT v3.3.1.900
Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of tuition receivable and allowance for doubtful accounts        
Tuition receivable $ 28,543 $ 25,777    
Allowance for doubtful accounts (10,024) (8,835) $ (10,303) $ (6,596)
Tuition receivable, net $ 18,519 $ 16,942