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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	Jan. 25, 2019	Jan. 31, 2018	Mar. 30, 2019	Dec. 29, 2018
Business Acquisition [Line Items]
Goodwill			$ 900.9	$ 902.2
TMB GeoMarketing Limited
Business Acquisition [Line Items]
Cash purchase price of assets	$ 1.3
George A. Sturdevant, Inc. (d/b/a Fastorq)
Business Acquisition [Line Items]
Cash purchase price of assets		$ 3.0
Goodwill				$ 2.6