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

Long-Term Debt - Narrative (Details)

v3.25.3

Long-Term Debt - Narrative (Details) - USD ($) $ in Millions				1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Apr. 30, 2024	Apr. 29, 2024	Apr. 18, 2024	Mar. 30, 2024	Sep. 27, 2025	Sep. 28, 2024	Mar. 30, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 30, 2023	Dec. 28, 2024
Debt Instrument [Line Items]
Loss on extinguishment and modification of debt					$ 0.0	$ 0.0		$ 0.0	$ 1.7
Unamortized debt issuance costs					8.0			8.0			$ 9.9
Deferred finance fee amortization								$ 2.1	1.9
Note Payable, First Lien \| Notes Payable
Debt Instrument [Line Items]
Variable rate				3.00%						3.25%
Prepayment of debt			$ 21.9
Loss on extinguishment and modification of debt						1.7			1.7
Note Payable, Amendment Number 7 First Lien \| Notes Payable
Debt Instrument [Line Items]
Variable rate								2.50%
Prepayment of debt								$ 40.0
Face amount	$ 600.0
Periodic repayment, percent	0.25%
Interest rate								6.70%
Unamortized debt issuance costs					0.6			$ 0.6
Deferred finance fee amortization					$ 0.4	$ 0.5		$ 1.9	$ 1.8
Note Payable, Amendment Number 7 First Lien \| Notes Payable \| Base Rate
Debt Instrument [Line Items]
Variable rate	1.50%	2.00%
Note Payable, Amendment Number 7 First Lien \| Notes Payable \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Variable rate	2.50%	3.00%
Note Payable, Amendment Number 7 First Lien \| Notes Payable \| CSA
Debt Instrument [Line Items]
Variable rate							0.10%

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