Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Error Correction (Details)

v3.23.3
Summary of Significant Accounting Policies - Schedule of Error Correction (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Sep. 30, 2023
Oct. 01, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue $ 280.1 $ 262.5 $ 802.6 $ 739.8
Janus North America | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 272.1 256.7 771.7 723.5
As previously reported        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   262.5   739.8
As previously reported | Janus North America | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   256.7   723.5
Correction        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0.0   0.0
Correction | Janus North America | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0.0   0.0
Product revenues        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 237.8 233.7 686.0 654.5
Product revenues | Janus North America | Product revenues transferred at a point in time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 210.4 214.5 592.3 587.4
Product revenues | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 28.9 20.5 89.5 73.2
Product revenues | As previously reported        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   230.8   642.1
Product revenues | As previously reported | Janus North America | Product revenues transferred at a point in time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   232.2   648.2
Product revenues | As previously reported | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   0.0   0.0
Product revenues | Correction        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   2.9   12.4
Product revenues | Correction | Janus North America | Product revenues transferred at a point in time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   (17.7)   (60.8)
Product revenues | Correction | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   20.5   73.2
Service revenues        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue 42.3 28.8 116.6 85.3
Service revenues | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue $ 32.8 21.7 $ 89.9 62.9
Service revenues | As previously reported        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   31.7   97.7
Service revenues | As previously reported | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   24.5   75.3
Service revenues | Correction        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   (2.9)   (12.4)
Service revenues | Correction | Janus North America | Service revenues transferred over time | Operating Segments        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Revenue   $ (2.8)   $ (12.4)