Business Acquisitions, Goodwill and Acquired Intangible Assets (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 30, 2012	Jan. 01, 2012
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	$ 284.6	$ 208.6
Other acquired intangible assets subject to amortization, accumulated amortization	112.9	84.5
Other acquired intangible assets subject to amortization, net carrying amount	171.7	124.1
Total other acquired intangible assets, gross carrying amount	378.6	265.9
Total other acquired intangible assets, accumulated amortization	112.9	84.5
Total other acquired intangible assets, net carrying amount	265.7	181.4
Proprietary Technology [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	176.3	124.2
Other acquired intangible assets subject to amortization, accumulated amortization	63.9	47.0
Other acquired intangible assets subject to amortization, net carrying amount	112.4	77.2
Customer List/Relationships [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	91.1	68.5
Other acquired intangible assets subject to amortization, accumulated amortization	33.9	25.3
Other acquired intangible assets subject to amortization, net carrying amount	57.2	43.2
Patents [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	0.7	0.7
Other acquired intangible assets subject to amortization, accumulated amortization	0.6	0.5
Other acquired intangible assets subject to amortization, net carrying amount	0.1	0.2
Noncompete Agreements [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	0.9	0.9
Other acquired intangible assets subject to amortization, accumulated amortization	0.9	0.9
Other acquired intangible assets subject to amortization, net carrying amount	0	0
Trademarks [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	3.3	3.2
Other acquired intangible assets subject to amortization, accumulated amortization	1.4	1.2
Other acquired intangible assets subject to amortization, net carrying amount	1.9	2.0
Backlog [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets subject to amortization, gross carrying amount	12.3	11.1
Other acquired intangible assets subject to amortization, accumulated amortization	12.2	9.6
Other acquired intangible assets subject to amortization, net carrying amount	0.1	1.5
Trademarks [Member]
Schedule of Acquired Intangible Assets by Major Class [Line Items]
Other acquired intangible assets not subject to amortization	$ 94.0	$ 57.3