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INTANGIBLE ASSETS - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Dec. 04, 2017
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Feb. 05, 2018
Nov. 01, 2017
Jun. 30, 2017
Intangible Assets [Line Items]                  
Amortization of Intangible Assets   $ 2,374,000   $ 2,792,000 $ 7,333,000 $ 8,487,000      
Indefinite-lived Intangible Assets, Period Increase (Decrease)         300,000        
Goodwill   845,843,000   838,805,000 845,843,000 838,805,000     $ 829,086,000
Intangible Assets, Net (Excluding Goodwill)   $ 405,342,000   $ 421,304,000 $ 405,342,000 $ 421,304,000     $ 412,158,000
Percentage Of Intangible Assets Including Goodwill   55.00%     55.00%        
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)     $ 1,600,000            
Goodwill, Impairment Loss     $ 22,200,000            
Proceeds from Sales of Business, Affiliate and Productive Assets $ 1.00                
Edupristine [Member]                  
Intangible Assets [Line Items]                  
Goodwill             $ 12,548,000    
Goodwill, Other Increase (Decrease)         $ 12,500,000        
Sao Judas Tadeu [Member]                  
Intangible Assets [Line Items]                  
Indefinite-lived Intangible Assets, Period Increase (Decrease)         200,000        
Goodwill               $ 3,807,000  
Goodwill, Other Increase (Decrease)         3,800,000        
Carrington [Member]                  
Intangible Assets [Line Items]                  
Intangible Assets, Net (Excluding Goodwill)   $ 20,200,000     $ 20,200,000