Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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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/disclosureRef
-Publisher FASB
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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
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- Definition

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

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Acquisitions - Narrative (Detail) - USD ($) $ in Millions					6 Months Ended
Acquisitions - Narrative (Detail) - USD ($) $ in Millions	Jan. 31, 2020	Aug. 07, 2019	Apr. 02, 2019	Jan. 25, 2019	Jun. 27, 2020	Jun. 29, 2019	Dec. 28, 2019	Sep. 28, 2019
Business Acquisition [Line Items]
Goodwill					$ 924.5		$ 913.8
Payment to acquire business, net of cash acquired					6.1	$ 9.3
Sigmavision
Business Acquisition [Line Items]
Cash purchase price of acquisition	$ 5.9
Goodwill					5.6
Cognitran Limited
Business Acquisition [Line Items]
Cash purchase price of acquisition		$ 30.6
Goodwill					$ 14.5
Payment to acquire business, net of cash acquired		$ 29.6
Power Hawk Technologies Inc
Business Acquisition [Line Items]
Cash purchase price of acquisition			$ 7.9
Goodwill								$ 6.4
TMB GeoMarketing Limited
Business Acquisition [Line Items]
Cash purchase price of acquisition				$ 1.3