BUSINESS COMBINATIONS - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended			9 Months Ended
	Dec. 31, 2011 Entity	Dec. 31, 2010 Entity	Dec. 31, 2009	Sep. 30, 2011 TSI Group Inc	Oct. 26, 2010 TSI Group Inc	Sep. 30, 2011 Satair	Oct. 27, 2010 Satair
Business Acquisition [Line Items]
Aggregate purchase price of business acquisition	$ 60.4	$ 469.0
Number of businesses acquired	4	2
Number of businesses sold	2
Proceeds from sale of business	19.2
Gain from sale of business	0.1
Business acquisition cash paid					307		162
Business acquisition purchase price allocation, increase in non-amortizing identifiable intangible assets				17.9
Business acquisition purchase price allocation, increase (decrease) in Goodwill				(17.9)
Estimated excess of purchase price over fair value allocated to identified intangible assets				72.6		16.1
Estimated excess of purchase price over fair value allocated to goodwill				210.2		76.7
Estimated excess of purchase price over fair value of identifiable net tangible assets acquired				282.8		92.8
Goodwill and other intangibles related to acquisition expected to be deductible for tax purpose	70.4	70.4
Unaudited pro forma revenues had business acquisitions occurred at the beginning of the period		2,171.9	2,182.2
Unaudited pro forma net earnings had business acquisitions occurred at the beginning of the period		$ 147.2	$ 142.2
Unaudited pro forma diluted net earnings per share had business acquisitions occurred at the beginning of the period		$ 1.46	$ 1.43