v3.26.1
Description of Business and Summary of Significant Accounting Policies (Details)
3 Months Ended 6 Months Ended
Jun. 28, 2026
USD ($)
Jun. 29, 2025
USD ($)
Jun. 28, 2026
USD ($)
segment
Jun. 29, 2025
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Number of reportable segments | segment     3  
Number of operating segments | segment     3  
Other Asset Impairment Charges   $ 22.1    
Finance lease, impairment loss   28,900,000 $ 3,200,000  
Goodwill impairment $ 0 $ 355,958,000 $ 0 $ 355,958,000
Valuation Technique, Discounted Cash Flow        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Fair value measurement, valuation technique, allocation, percentage     50.00%  
Valuation Technique, Discounted Cash Flow | Level 3 | Measurement Input, Discount Rate | Reporting Unit, U.S.        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Reporting unit, measurement input 0.100   0.100  
Valuation Technique, Discounted Cash Flow | Level 3 | Measurement Input, Discount Rate | Reporting Unit, KK U.K.        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Reporting unit, measurement input 0.120   0.120  
Valuation Technique, Discounted Cash Flow | Level 3 | Measurement Input, Discount Rate | Reporting Unit, KK Australia        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Reporting unit, measurement input 0.120   0.120  
Valuation, Market Approach        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Fair value measurement, valuation technique, allocation, percentage     50.00%