Acquisitions - Additional Information (Detail) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended			6 Months Ended		10 Months Ended				6 Months Ended
	Jun. 30, 2012 USD ($)	Jul. 02, 2011 USD ($)	Jun. 30, 2012 USD ($) Entity	Jul. 02, 2011 USD ($)	Dec. 31, 2011 USD ($) Entity	Mar. 31, 2012 Industrial Segment Entity	Jun. 30, 2012 AeroScout [Member] USD ($)	Jun. 30, 2012 Powers [Member] USD ($)	Jun. 30, 2012 Powers & Aeroscout [Member] USD ($)	Jun. 30, 2012 Niscayah [Member] USD ($)	Jul. 02, 2011 Niscayah [Member] USD ($)	Jun. 30, 2012 Niscayah [Member] USD ($)	Jul. 02, 2011 Niscayah [Member] USD ($)	Jun. 30, 2012 Niscayah [Member] USD ($)	Jun. 30, 2012 Niscayah [Member] SEK	Dec. 31, 2011 Niscayah [Member]	Sep. 09, 2011 Niscayah [Member] SEK	Jun. 30, 2012 Niscayah [Member] Trade names USD ($)	Jun. 30, 2012 Niscayah [Member] Customer relationships USD ($)	Jun. 30, 2012 Lista North America [Member] Industrial Segment USD ($)	Jun. 30, 2012 Other 2012 Acquisitions [Member] Industrial Segment USD ($)
Business Acquisition [Line Items]
Number of Businesses Acquired			4		9	2
Purchase price for acquisitions	$ 462.7	$ 37.8	$ 577.4	$ 106.1	$ 216.2		$ 238.8	$ 224.4		$ 11.3	$ 58.5	$ 11.3	$ 58.5	$ 995.8						$ 90.3	$ 23.9
Assets acquired, Other intangible assets									209.0									6.0	350.0
Cash Acquired from Acquisition									7
Business Acquisition, Purchase Price Allocation, Assets Acquired									326
Business Acquisition, Purchase Price Allocation, Liabilities Assumed									117
Goodwill									260.0	866.2		866.2		866.2
Percentage of ownership interest											5.80%		5.80%			99.00%	95.00%
Business acquisitions, price paid for each common shares																	18
Business acquisitions, price to be paid for each remaining common shares of the acquired company															18
Weighted-average useful lives																		4 years	16 years
Net Sales	35.4		54.6
Net (Loss) Income	$ (0.2)		$ 1.9