Acquisitions (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended	0 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Feb. 22, 2013 Gefen Distribution Verwaltungs GmbH [Member]	Sep. 28, 2013 2 G.I.G and Gefen Distribution [Member]	Sep. 28, 2013 2 G.I.G and Gefen Distribution [Member]	Apr. 01, 2013 2GIG Technologies, Inc. [Member]	Sep. 28, 2013 2GIG Technologies, Inc. [Member]	Sep. 28, 2013 2GIG Technologies, Inc. [Member]	Sep. 28, 2013 2GIG Technologies, Inc. [Member]	Dec. 31, 2013 Scenario, Forecast [Member] 2GIG Technologies, Inc. [Member]	Jun. 29, 2013 SG&A [Member] Gefen Distribution Verwaltungs GmbH [Member]	Sep. 28, 2013 SG&A [Member] 2GIG Technologies, Inc. [Member]
Business Acquisition [Line Items]
Total consideration					$ 2.9			$ 164.2
Business acquisition, cash paid					0.9			135.0
Estimated working capital adjustments								13.9
Amortization of intangible assets	(13.2)	(11.0)	(38.1)	(33.0)						(4.3)		(8.7)
Fair value of intangible assets											84.0
Holdback amount					0.2
Settlement of receivable					1.8			15.3
Net sales	589.2	557.4	1,739.0	1,695.9		12.8	71.4
Operating earnings (loss)	32.5	33.8	77.5	112.4		5.6	11.7
Depreciation and amortization expense			69.8	62.7		2.3	8.0
InventoryAmortization							3.1
Contingent consideration								12.3	1.6
Fees and expenses											$ 1.7		$ 0.3	$ 1.7