Janus International Group Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Business Combination - Narrative (Details)

Business Combination - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 04, 2026	Jan. 08, 2026	Jan. 03, 2026
Business Combination [Line Items]
Goodwill	$ 428.0		$ 383.9
Kiwi Acquisition
Business Combination [Line Items]
Interest acquired		100.00%
Goodwill		$ 44.2
Revenue	18.1
Net loss	$ 1.4

- Definition

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.

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+ Details

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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