Annual report pursuant to Section 13 and 15(d)

Segments Information (Details)

v3.24.0.1
Segments Information (Details)
$ in Millions
 12 Months Ended
Dec. 30, 2023
USD ($)
segment
Dec. 31, 2022
USD ($)
Jan. 01, 2022
USD ($)
Segment Reporting Information [Line Items]      
Number of reportable segments | segment 2    
Revenue $ 1,066.4 $ 1,019.5 $ 750.1
Income From Operations 245.7 187.5 92.3
Depreciation Expense 9.3 7.9 6.5
Amortization of Intangible Assets 29.8 29.7 31.6
Capital Expenditures 19.0 8.8 19.9
Property, plant and equipment, net 52.4 42.1  
Identifiable Assets 1,350.0 1,270.6  
Non-U.S.      
Segment Reporting Information [Line Items]      
Revenue 82.3 75.5 68.6
Identifiable Assets 70.5 61.1  
Janus North America      
Segment Reporting Information [Line Items]      
Depreciation Expense 8.3 7.1 6.0
Amortization of Intangible Assets 28.4 28.4 30.1
Capital Expenditures 15.4 7.7 16.2
Property, plant and equipment, net 46.3 37.9  
Identifiable Assets 1,280.0 1,209.9  
Janus International      
Segment Reporting Information [Line Items]      
Depreciation Expense 1.0 0.8 0.5
Amortization of Intangible Assets 1.4 1.3 1.5
Capital Expenditures 3.6 1.1 3.7
Property, plant and equipment, net 6.1 4.2  
Identifiable Assets 70.0 60.7  
Operating Segments | Janus North America      
Segment Reporting Information [Line Items]      
Revenue 1,028.4 994.3 714.9
Income From Operations 238.2 183.2 95.9
Operating Segments | Janus International      
Segment Reporting Information [Line Items]      
Revenue 82.3 75.5 68.6
Income From Operations 7.8 4.4 (3.6)
Eliminations      
Segment Reporting Information [Line Items]      
Revenue (44.3) (50.3) (33.4)
Income From Operations $ (0.3) $ (0.1) $ 0.0