Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Disaggregation of Revenue (Details)

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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2022
Dec. 26, 2020
Disaggregation of Revenue [Line Items]    
Revenue $ 750,150 $ 548,973
Eliminations    
Disaggregation of Revenue [Line Items]    
Revenue (33,373) (16,636)
Janus North America | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 714,944 520,119
Janus North America | Operating Segments | Self Storage-New Construction    
Disaggregation of Revenue [Line Items]    
Revenue 235,361 246,547
Janus North America | Operating Segments | Self Storage-R3    
Disaggregation of Revenue [Line Items]    
Revenue 220,949 132,283
Janus North America | Operating Segments | Commercial and Others    
Disaggregation of Revenue [Line Items]    
Revenue 258,634 141,289
Janus North America | Operating Segments | Goods transferred at a point in time    
Disaggregation of Revenue [Line Items]    
Revenue 615,020 430,585
Janus North America | Operating Segments | Services transferred over time    
Disaggregation of Revenue [Line Items]    
Revenue 99,924 89,534
Janus International | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 68,579 45,490
Janus International | Operating Segments | Self Storage-New Construction    
Disaggregation of Revenue [Line Items]    
Revenue 51,723 25,509
Janus International | Operating Segments | Self Storage-R3    
Disaggregation of Revenue [Line Items]    
Revenue 16,856 19,981
Janus International | Operating Segments | Commercial and Others    
Disaggregation of Revenue [Line Items]    
Revenue 0 0
Janus International | Operating Segments | Goods transferred at a point in time    
Disaggregation of Revenue [Line Items]    
Revenue 38,490 25,509
Janus International | Operating Segments | Services transferred over time    
Disaggregation of Revenue [Line Items]    
Revenue $ 30,089 $ 19,981