Acquisitions (Intangible Assets) (Details) (2GIG Technologies, Inc. [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 28, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	$ 84.0
Weighted Average Useful Lives	9 years 8 months
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	73.1
Weighted Average Useful Lives	10 years
Completed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	6.1
Weighted Average Useful Lives	7 years
Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	$ 4.8
Weighted Average Useful Lives	10 years