XML 82 R71.htm IDEA: XBRL DOCUMENT v3.10.0.1
Other Non-Operating Income (Narrative) (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
business
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Schedule of Non-Operating Income (Expense) [Line Items]          
Gain Related to Contingent Consideration $ 1,400        
Gain (loss) on sales of businesses 1,334   $ 0 $ 7,241 $ (342)
Education [Member]          
Schedule of Non-Operating Income (Expense) [Line Items]          
Gain (loss) on sales of businesses   $ 5,900      
Number of businesses disposed | business   2      
Higher Education [Member] | Education [Member] | Kaplan University Transaction [Member]          
Schedule of Non-Operating Income (Expense) [Line Items]          
Gain Related to Contingent Consideration $ 1,400        
Gain (loss) on sales of businesses   $ 4,300