Acquisitions (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010	Aug. 22, 2011	Nov. 30, 2012 Series of Individually Immaterial Business Acquisitions [Member]	Oct. 02, 2012 Series of Individually Immaterial Business Acquisitions [Member]	Apr. 30, 2012 Series of Individually Immaterial Business Acquisitions [Member]	Jun. 01, 2011 Australian Fan And Motor Company [Member]	Sep. 29, 2012 Ramu, Inc. [Member]	Apr. 05, 2011 Ramu, Inc. [Member]	Dec. 23, 2010 Unico, Inc. [Member]	Nov. 01, 2010 Elco Group B.V. [Member]	Sep. 01, 2010 Rotor B.V. [Member]	Apr. 06, 2010 CMG Engineering Group Pty, Ltd. [Member]	Aug. 22, 2011 Customer Relationships [Member]	Aug. 22, 2011 Technology [Member]
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price								$ 5,700,000		$ 5,300,000	$ 105,100,000			$ 82,600,000
Current Fiscal Year End Date	--12-29
Acquisition related expenses	400,000	16,100,000	6,600,000
Business Combination, Acquisition Related Costs	400,000	16,100,000	6,600,000
Business Acquisition, Purchase Price Allocation, Assets Acquired				1,009,900,000
Business acquisition recorded liability									13,700,000
Percentage of interest acquired												0.00%
Cash included in purchase price		756,100,000			3,700,000	3,400,000	1,600,000					4,600,000	36,400,000	76,500,000
Amount payable to an entity related to acquisition	22,300,000
Acquisition to be paid in semi-annual payments	10,500,000											22,300,000
Acquisition purchase price paid in shares		2,834,026												6,100,000
Intangible assets				$ 155,100,000											$ 87,700,000	$ 67,400,000