Basis of Presentation, Class of Warrant or Right (Details) - $ / shares	May. 31, 2015	Aug. 31, 2014	Mar. 18, 2013
Class of Warrant or Right [Line Items]
Right to purchase minority equity position (in shares)	1,172,513,618	1,028,180,150
Warrants Exercisable in March 2016 [Member]
Class of Warrant or Right [Line Items]
Warrant issued to purchase common stock (in shares)	22,696,912
Warrant exercise price (in dollars per share)	$ 51.50
Warrants Exercisable in March 2017 [Member]
Class of Warrant or Right [Line Items]
Warrant issued to purchase common stock (in shares)	22,696,912
Warrant exercise price (in dollars per share)	$ 52.50
AmerisourceBergen Corporation [Member]
Class of Warrant or Right [Line Items]
Percentage of fully diluted equity (in hundredths)			7.00%
Maximum [Member] | AmerisourceBergen Corporation [Member]
Class of Warrant or Right [Line Items]
Right to purchase minority equity position (in shares)			19,859,795