Business Acquisition, Purchase Price Allocation, Intangible Assets Amount

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 6

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Acquisition Date

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Subparagraph (b)

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

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-Topic 230

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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Business Acquisitions, Goodwill and Acquired Intangible Assets (Purchase Price) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 28, 2014	Mar. 01, 2013	Dec. 29, 2013	May 08, 2013	Aug. 30, 2013	Oct. 22, 2013	Apr. 03, 2012	Dec. 30, 2012
Business Acquisition [Line Items]
Goodwill	$ 1,150.6us-gaap_Goodwill		$ 1,037.8us-gaap_Goodwill					$ 990.2us-gaap_Goodwill
Photon
Business Acquisition [Line Items]
Acquisition date	Mar. 30, 2014
Purchase Price	2.9
Goodwill	1.4
Acquired Intangible Assets	1.5
Atlas
Business Acquisition [Line Items]
Acquisition date	Aug. 07, 2014
Purchase Price	5.2
Goodwill	3.6
Acquired Intangible Assets	0.8
Bolt
Business Acquisition [Line Items]
Acquisition date	Nov. 18, 2014
Purchase Price	171.0
Goodwill	128.8
Acquired Intangible Assets	41.5
Oceanscience
Business Acquisition [Line Items]
Acquisition date	Oct. 22, 2014
Purchase Price	14.7
Goodwill	9.0
Acquired Intangible Assets	4.4
RESON
Business Acquisition [Line Items]
Acquisition date			Mar. 01, 2013
Purchase Price		69.7	69.7
Goodwill			35.1
Acquired Intangible Assets			25.5
Axiom
Business Acquisition [Line Items]
Acquisition date			Mar. 08, 2013
Purchase Price			4.0	4.0
Goodwill			3.4
Acquired Intangible Assets			0.3
CETAC
Business Acquisition [Line Items]
Acquisition date			Aug. 30, 2013
Purchase Price			26.4		26.4
Goodwill			11.1
Acquired Intangible Assets			6.7
CDL
Business Acquisition [Line Items]
Acquisition date			Oct. 22, 2013
Purchase Price			21.8			21.8
Goodwill			11.9
Acquired Intangible Assets			7.8
Nova Sensors
Business Acquisition [Line Items]
Acquisition date			Jul. 08, 2013
Purchase Price			4.9
Goodwill			0
Acquired Intangible Assets			0
Other investments
Business Acquisition [Line Items]
Purchase Price	2.0		1.4
Goodwill	0		1.0
Acquired Intangible Assets	0		0.3
Optech Incorporated
Business Acquisition [Line Items]
Purchase Price							27.9
Acquisitions in 2014
Business Acquisition [Line Items]
Purchase Price	195.8
Goodwill	142.8
Acquired Intangible Assets	48.2
Acquisitions in 2013
Business Acquisition [Line Items]
Purchase Price			128.2
Goodwill			62.5
Acquired Intangible Assets			$ 40.6