Restructuring and Transformation Activities - Schedule of Restructuring and Related Costs (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2023	Apr. 02, 2023	Dec. 29, 2024	Dec. 31, 2023	Jan. 01, 2023
Restructuring Cost and Reserve [Line Items]
Total			$ 6.6	$ 40.6	$ 1.7
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]				SG&A expenses	SG&A expenses
2024 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs			3.0
Lease Termination Costs, Transformation and Other			3.1
Total			6.1
2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 3.1	$ 4.6		$ 19.3
Lease Termination Costs, Transformation and Other				19.3
Total		$ 5.7		38.6
2022 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs					$ 1.5
Lease Termination Costs, Transformation and Other					0.2
Total					1.7
Professional & Industrial | 2024 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs			0.3
Lease Termination Costs, Transformation and Other			0.0
Total			0.3
Professional & Industrial | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				6.0
Lease Termination Costs, Transformation and Other				0.7
Total				6.7
Professional & Industrial | 2022 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs					0.1
Lease Termination Costs, Transformation and Other					0.2
Total					0.3
Science, Engineering & Technology | 2024 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs			0.3
Lease Termination Costs, Transformation and Other			0.0
Total			0.3
Science, Engineering & Technology | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				1.3
Lease Termination Costs, Transformation and Other				0.3
Total				1.6
Outsourcing & Consulting | 2024 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs			0.4
Lease Termination Costs, Transformation and Other			0.0
Total			0.4
Outsourcing & Consulting | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				3.0
Lease Termination Costs, Transformation and Other				0.0
Total				3.0
Outsourcing & Consulting | 2022 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs					0.2
Lease Termination Costs, Transformation and Other					0.0
Total					0.2
Education | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				1.0
Lease Termination Costs, Transformation and Other				0.0
Total				1.0
Education | 2022 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs					0.4
Lease Termination Costs, Transformation and Other					0.0
Total					0.4
International | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				3.3
Lease Termination Costs, Transformation and Other				0.0
Total				3.3
Corporate | 2024 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs			2.0
Lease Termination Costs, Transformation and Other			3.1
Total			$ 5.1
Corporate | 2023 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs				4.7
Lease Termination Costs, Transformation and Other				18.3
Total				$ 23.0
Corporate | 2022 Actions
Restructuring Cost and Reserve [Line Items]
Severance Costs					0.8
Lease Termination Costs, Transformation and Other					0.0
Total					$ 0.8