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

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Significant Accounting Policies - Narrative (Details)

v3.25.2

Summary of Significant Accounting Policies - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2025 USD ($)	Jun. 29, 2024 USD ($)	Jun. 28, 2025 USD ($) segment	Jun. 29, 2024 USD ($)
Product Information [Line Items]
Accounts payable			$ 12.2	$ (2.8)
Cost of revenues	$ 134.9	$ 139.4	263.5	283.5
Interest income	$ 1.2	0.4	$ 2.3	0.4
Product warranty obligation, term	10 years		10 years
Number of operating segments \| segment			2
Number of reportable segments \| segment			2
Service revenues
Product Information [Line Items]
Cost of revenues	$ 35.8	24.3	$ 66.7	53.7
Revision of Prior Period, Error Correction, Adjustment \| Service revenues
Product Information [Line Items]
Accounts payable				$ 2.5
Cost of revenues		$ (2.5)
Inventory Concentration Risk \| Customer One \| Customer Concentration Risk
Product Information [Line Items]
Concentration risk			14.00%
Minimum
Product Information [Line Items]
Product warranty obligation, term	1 year		1 year
Maximum
Product Information [Line Items]
Product warranty obligation, term	3 years		3 years

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