Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				1 Months Ended	3 Months Ended
	Nov. 30, 2012 Telair and Nordisk	Aug. 31, 2012 Telair and Nordisk	May 31, 2012 Telair and Nordisk	Dec. 02, 2011 Telair and Nordisk	Oct. 31, 2011 Airinmar	Feb. 28, 2013 Airinmar	May 31, 2012 Airinmar	Oct. 31, 2012 Airinmar	Feb. 29, 2012 Airinmar	Oct. 11, 2011 Airinmar
Acquisitions
Purchase price of the acquisition			$ 296.5	$ 280.0						$ 43.5
Working capital adjustment paid		16.5			23.2
Potential earn-out payment										20.3
Period over which EBITDA levels will be measured					2 years
Estimated liability of the acquisition date fair value of the earn-out									20.3
Reduction in liability of the acquisition date fair value of the earn-out						9.0	3.4
Adjustment amount between goodwill and identified intangibles	11.0
Settlement amount for the earn-out						4.6
Purchase price allocation
Cash	1.5							3.7
Accounts receivable	47.1							8.0
Inventories	54.5
Prepaid expenses	4.1							0.9
Property, plant and equipment	17.0							0.6
Deferred tax assets	34.3							5.3
Goodwill	103.9							21.6
Identified intangibles	120.0							20.8
Notes payable	(1.6)
Accounts payable	(14.7)							(6.7)
Deferred tax liabilities	(34.3)							(5.3)
Accrued liabilities	(27.5)							(5.4)
Other long-term liabilities	$ (7.8)