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Acquisitions (Details) In Millions, unless otherwise specified	6 Months Ended				0 Months Ended		0 Months Ended			1 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2013 EUR (€)	Jun. 30, 2013 3.75% senior notes due 2022	Dec. 17, 2012 Thermax and Raydex/CDT Limited USD ($)	Dec. 17, 2012 Thermax and Raydex/CDT Limited 3.75% senior notes due 2022	Mar. 09, 2012 Hertalan Holding B.V. USD ($)	Mar. 09, 2012 Hertalan Holding B.V. EUR (€)	Dec. 02, 2011 Tri-Star Electronics International, Inc. USD ($)	Aug. 31, 2011 PDT Phoenix GmbH USD ($)	Aug. 31, 2011 PDT Phoenix GmbH EUR (€)	Aug. 02, 2011 PDT Phoenix GmbH USD ($)	Aug. 02, 2011 PDT Phoenix GmbH EUR (€)
Business acquisition
Percentage of ownership interest acquired							100.00%	100.00%	100.00%			100.00%	100.00%
Consideration
Total fair value of consideration transferred												$ 118.6	€ 82.3
Cash purchase price of acquisition												113.4	78.7
Aggregate cash purchase price, net of cash acquired	49.3				265.5		48.9	37.3	284.8	111.0	77.0
Cash acquired in business combination					0.1		0.1	0.1	4.5	7.6	5.3
Interest rate (as a percent)				3.75%		3.75%
Maximum borrowing capacity							600.0
Contingent consideration		$ (10.4)	€ (8.0)									$ 5.2	€ 3.6