Acquired Intangible Assets Subject to Amortization and Values and Estimated Useful Life (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012 Student Relationships September 3, 2012	Sep. 30, 2012 Clinical Agreement September 3, 2012	Sep. 30, 2012 Faculdade Do Vale DoI Ipojuca	Sep. 30, 2013 Faculdade Diferencial Integral Clinical Agreement July 1, 2013
Business Acquisition [Line Items]
Amortizable intangible assets	$ 2,257	$ 79		$ 583
Amortizable intangible assets, estimated useful life	5 years	2 years	4 years 10 months 24 days	15 years