v3.25.2
Acquisitions and Disposition - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 13, 2024
May 31, 2024
Jan. 02, 2024
Jun. 29, 2025
Mar. 30, 2025
Dec. 29, 2024
Jun. 30, 2024
Jun. 29, 2025
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Business Combination [Line Items]                      
Goodwill       $ 304.1   $ 304.2   $ 304.1     $ 151.1
Proceeds from sale of EMEA staffing operations, net of cash disposed               21.8 $ 77.1    
Gain on sale of EMEA staffing operations       4.0     $ (10.0) 4.0 1.6    
Other income (expense), net       (2.3)     (6.5) (5.5) (4.7)    
Disposal Group, Not Discontinued Operations | EMEA Staffing Operations                      
Business Combination [Line Items]                      
Proceeds from divestiture of business     $ 110.6                
Proceeds from sale of EMEA staffing operations, net of cash disposed     $ 77.1                
Other receivables             16.8   16.8 $ 26.9  
Working capital and other adjustments             $ 10.1   $ 10.1    
Proceeds from divestiture of businesses, net of cash divested       21.8              
Disposal group, not discontinued operation, gain (loss) on disposal, including net foreign currency gain (loss)       4.8              
Gain on sale of EMEA staffing operations       4.0              
Other income (expense), net       0.8              
Children's Therapy Center (CTC) | Kelly Services USA, LLC (KSU)                      
Business Combination [Line Items]                      
Ownership percentage acquired 100.00%                    
Business combination, consideration transferred $ 3.3                    
Total cash consideration $ 3.1                    
Net working capital adjustment         $ 0.1            
Goodwill       $ 2.9       $ 2.9      
Motion Recruitment Partners, LLC                      
Business Combination [Line Items]                      
Ownership percentage acquired   100.00%                  
Business combination, consideration transferred   $ 425.0                  
Total cash consideration   440.0                  
Net working capital adjustment           1.4          
Additional consideration payable   3.4                  
Contingent consideration, maximum   $ 60.0                  
Business combination, contingent consideration, liability           $ 0.0