v3.26.1
Debt - Narrative (Details)
$ in Millions
6 Months Ended
Jul. 04, 2026
USD ($)
Jul. 04, 2026
USD ($)
Jun. 10, 2026
USD ($)
Jan. 03, 2026
USD ($)
Sep. 05, 2025
Debt Instrument [Line Items]          
Long-term debt obligations $ 1,375.2 $ 1,375.2   $ 1,293.1  
Deferred debt issuance costs, current 0.5 0.5      
Deferred debt issuance costs 1.8 1.8      
Revolving Credit Facility          
Debt Instrument [Line Items]          
Long-term line of credit outstanding 103.0 103.0      
Line of credit maximum borrowing capacity $ 425.0 425.0      
Note term (in years) 5 years        
Revolving Credit Facility | Debt Instrument, Redemption, Period One          
Debt Instrument [Line Items]          
Leverage ratio         4.25
Revolving Credit Facility | Debt Instrument, Redemption, Period Two          
Debt Instrument [Line Items]          
Leverage ratio         4.00
Revolving Credit Facility | Debt Instrument, Redemption, Period Three          
Debt Instrument [Line Items]          
Leverage ratio         3.50
Revolving Credit Facility | Debt Instrument, Redemption, Period Four          
Debt Instrument [Line Items]          
Leverage ratio         3.50
Line of Credit | Secured Debt          
Debt Instrument [Line Items]          
New term loan     $ 499.0    
Notes Payable to Banks          
Debt Instrument [Line Items]          
Long-term debt obligations $ 946.0 946.0      
Private Placement          
Debt Instrument [Line Items]          
Fair value of debt obligations 443.0 $ 443.0      
Term Loan B | Line of Credit          
Debt Instrument [Line Items]          
Note term (in years)   7 years      
Total debt, gross 497.5 $ 497.5      
Deferred debt issuance costs $ 8.0 $ 8.0      
Term Loan B | Line of Credit | Credit Agreement          
Debt Instrument [Line Items]          
Total debt, gross     $ 499.0    
Term Loan B | Line of Credit | Senior Unsecured Debt          
Debt Instrument [Line Items]          
Periodic repayment percent 0.25% 0.25%      
Term Loan A | Line of Credit          
Debt Instrument [Line Items]          
Note term (in years)   5 years      
Total debt, gross $ 345.6 $ 345.6      
Amortization payments, period one   0.625%      
Amortization payments, period two   1.25%      
Amortization payments, period three   1.875%      
Amortization payments, period four   2.50%      
Deferred debt issuance costs 1.8 $ 1.8      
5.125% Notes Due 2029 | Private Placement Notes          
Debt Instrument [Line Items]          
Total debt, gross 450.0 450.0   450.0  
Notes Issued In Connection For Steelcase Acquisition | Private Placement Notes          
Debt Instrument [Line Items]          
Total debt, gross       351.0  
Steelcase Public Notes | Private Placement Notes          
Debt Instrument [Line Items]          
Total debt, gross       $ 99.0  
5.125% Notes, due 2029 | Private Placement Notes          
Debt Instrument [Line Items]          
Deferred debt issuance costs and discount $ 11.1 $ 11.1