Balance Sheet Accounts and Supplemental Disclosures, (As Restated for fiscal 2014 and 2013) - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Nov. 30, 2015	Aug. 31, 2015	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 157.3				$ 157.3
Accumulated Amortization	48.5				35.1
Net Carrying Amount	108.8	$ 112.1	$ 115.5	$ 118.8	122.2	$ 125.6	$ 128.9	$ 132.3
Customer Related [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	83.8				83.8
Accumulated Amortization	27.6				18.5
Net Carrying Amount	56.2				65.3
Intellectual Property\Trade Secrets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	34.2				34.2
Accumulated Amortization	6.4				3.7
Net Carrying Amount	27.8				30.5
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0.5				0.5
Accumulated Amortization	0.4				0.2
Net Carrying Amount	0.1				0.3
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20.5				20.5
Accumulated Amortization	1.6				1.0
Net Carrying Amount	18.9				19.5
Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	18.3				18.3
Accumulated Amortization	12.5				11.7
Net Carrying Amount	$ 5.8				$ 6.6