SUMMARIZED FINANCIAL INFORMATION OF ANIXTER INC - Additional Information (Detail)	12 Months Ended
Jan. 03, 2020
Disclosure Summarized Financial Information Of Anixter Inc Additional Information [Abstract]
Description of guarantees given by parent company	Anixter International Inc. guarantees, fully and unconditionally, substantially all of the debt of its subsidiaries, which include Anixter Inc., its 100% owned primary operating subsidiary. Anixter International Inc. has no independent assets or operations and all subsidiaries other than Anixter Inc. are minor.

Description of guarantees issued by the registrant unless separately disclosed in the consolidated statements.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph a
-Subsection 04

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

Name:	srt_DescriptionOfGuaranteesGivenByParentCompany
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration