The Company and Basis of Presentation - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2014 State Facility Location Attendant	Sep. 30, 2014 Facility
Business And Summary Of Significant Accounting Policies [Line Items]
Number of students in degree programs | Attendant	57,000
Number of training facilities | Facility	4
Number of states where online programs are offered | State	50
Number of locations	149
Number of campuses	147
Number of learning sites	2
Number of states | State	39
Subsequent Event [Member]
Business And Summary Of Significant Accounting Policies [Line Items]
Number of training facilities eliminated | Facility		4