Business Combinations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended		12 Months Ended			1 Months Ended	12 Months Ended			1 Months Ended							12 Months Ended	1 Months Ended
	Jun. 30, 2013 American University Of Caribbean	Aug. 03, 2011 American University Of Caribbean	Jun. 30, 2013 American University Of Caribbean Medical Education [Member]	Aug. 03, 2011 American University Of Caribbean Title Four Eligibility And Accreditations	Aug. 03, 2011 American University Of Caribbean Trade Name	Feb. 29, 2012 Faculdade Boa Viagem	Jun. 30, 2013 Faculdade Boa Viagem	Feb. 29, 2012 Faculdade Boa Viagem Title Four Eligibility And Accreditations	Feb. 29, 2012 Faculdade Boa Viagem Trade Name	Apr. 02, 2012 ATC International	Apr. 02, 2012 Falcon Physician Reviews	Apr. 02, 2012 Falcon Physician Reviews	Sep. 03, 2012 Faculdade Do Vale DoI pojuca	Jun. 30, 2013 Faculdade Do Vale DoI pojuca	Sep. 03, 2012 Faculdade Do Vale DoI pojuca Title Four Eligibility And Accreditations	Sep. 03, 2012 Faculdade Do Vale DoI pojuca Trade Name	Jun. 30, 2013 Medical Education Services, Inc [Member] American University Of Caribbean Minimum	Aug. 03, 2011 Medical Education Services, Inc [Member] American University Of Caribbean Trade Name
Business Acquisition [Line Items]
Amortizable intangible assets, estimated useful lives										5 years 9 months 18 days		5 years 9 months 18 days	4 years 10 months 24 days
Number of students in Degree program							5,800						5,000
Number of campuses													2
Intangible Assets		$ 131.4		$ 100.0	$ 17.1	$ 19.1							$ 13.6
Intangible assets not subject to amortization								13.5	2.3						10.2	1.1
Expected additional installment payment for acquisition over the next twelve months						21.9							3.9	2.6
Number of undergraduate and graduate programs													30
Payments to Acquire Businesses						$ 24.2					$ 5.4		$ 32.2					$ 226.0
Students Enrollment Total			1,200
Number Of Graduates																	4,000
Number Of Eligible States	50