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Other Non-Operating Income (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Jun. 30, 2016
Schedule of Non-Operating Income (Expense) [Line Items]      
Document Fiscal Year Focus 2017    
(Loss) gain on sales of businesses $ (342) $ 18,931  
Residential Healthcare [Member] | Residential Healthcare Michigan hospital joint venture [Member]      
Schedule of Non-Operating Income (Expense) [Line Items]      
Equity Method Investment, Ownership Percentage     40.00%
Celtic Healthcare Allegheny Health Network Joint Venture [Member] | Celtic Healthcare Inc [Member]      
Schedule of Non-Operating Income (Expense) [Line Items]      
Equity Method Investment, Ownership Percentage 40.00%    
Residential Healthcare Michigan hospital joint venture [Member] | Residential Healthcare [Member]      
Schedule of Non-Operating Income (Expense) [Line Items]      
Equity Method Investment, Ownership Percentage 40.00%    
Kaplan Corporate and Other [Member] | Education [Member] | Colloquy [Member]      
Schedule of Non-Operating Income (Expense) [Line Items]      
(Loss) gain on sales of businesses   $ 18,900