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.

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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.

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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								12 Months Ended
Acquisitions - Narrative (Detail) - USD ($) $ in Millions	Aug. 07, 2019	Apr. 02, 2019	Jan. 25, 2019	Jan. 31, 2018	Jul. 28, 2017	May 04, 2017	Jan. 30, 2017	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Business Acquisition [Line Items]
Goodwill								$ 913.8	$ 902.2	$ 924.1
Cash purchase price of acquisition, net of cash acquired								38.6	3.0	82.9
Cognitran Limited
Business Acquisition [Line Items]
Cash purchase price of acquisition	$ 30.4
Goodwill								11.4
Cash purchase price of acquisition, net of cash acquired	$ 29.4
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
Goodwill								$ 1.3
George A. Sturdevant, Inc. (d/b/a Fastorq)
Business Acquisition [Line Items]
Cash purchase price of acquisition				$ 3.0
Goodwill									2.6
Torque Control Specialists Pty Ltd
Business Acquisition [Line Items]
Cash purchase price of acquisition					$ 3.6
Goodwill									2.0
Cash purchase price of acquisition, net of cash acquired					$ 3.5
Norbar
Business Acquisition [Line Items]
Cash purchase price of acquisition						$ 71.6
Goodwill									$ 25.1
Cash purchase price of acquisition, net of cash acquired						$ 69.9
BTC
Business Acquisition [Line Items]
Cash purchase price of acquisition							$ 9.2
Goodwill										$ 5.9