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

Quarterly report [Sections 13 or 15(d)]

Restructuring - Schedule of Restructuring Expenses (Details)

Restructuring - Schedule of Restructuring Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 04, 2026	Mar. 29, 2025
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 2.6	$ 0.4
Severance and termination benefits
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	2.5	0.3
Legal, consulting, and other costs
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 0.1	$ 0.1

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- 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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