BUSINESS COMBINATIONS (Estimated Fair Values of Assets Acquired and Liabilities Assumed) (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Jul. 02, 2016	Jun. 30, 2016	Jun. 01, 2016	Mar. 31, 2016	Dec. 15, 2015
Business Acquisition [Line Items]
Goodwill	$ 861,001		$ 588,007		$ 565,012
Association Of Certified Anti-Money Laundering Specialists [Member]
Business Acquisition [Line Items]
Current Assets		$ 24,895
Property and Equipment		432
Other Long-term Assets		3,200
Intangible Assets		88,600
Goodwill		274,620
Total Assets Acquired		391,747
Liabilities Assumed		37,619
Net Assets Acquired		$ 354,128
Faculdade de Imperatriz [Member]
Business Acquisition [Line Items]
Current Assets				$ 1,626
Property and Equipment				291
Intangible Assets				2,652
Goodwill				4,997
Total Assets Acquired				9,566
Liabilities Assumed				2,756
Net Assets Acquired				$ 6,810
Grupo Ibmec Educacional S A [Member]
Business Acquisition [Line Items]
Current Assets						$ 27,615
Property and Equipment						17,968
Other Long-term Assets						2,639
Intangible Assets						59,275
Goodwill						107,888
Total Assets Acquired						215,385
Liabilities Assumed						24,423
Net Assets Acquired						$ 190,962