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Integration, Realignment and Restructuring - Schedule of Restructuring and Related Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2026	Sep. 28, 2025	Sep. 27, 2026	Sep. 28, 2025
2026 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges	$ 1.9		$ 7.0
Severance	1.3		1.8
Fees and Other	1.9		3.9
Total	5.1		12.7
2025 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges		$ 2.1		$ 9.1
Severance		0.0		6.5
Fees and Other		1.4		4.7
Total		3.5		20.3
Enterprise Talent Management \| 2026 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges	0.0		0.0
Severance	0.5		0.5
Fees and Other	0.1		0.1
Total	0.6		0.6
Enterprise Talent Management \| 2025 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges		0.0		0.0
Severance		(0.1)		3.6
Fees and Other		0.1		0.2
Total		0.0		3.8
Science, Engineering & Technology \| 2026 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges	0.0		0.0
Severance	0.5		0.8
Fees and Other	0.2		0.4
Total	0.7		1.2
Science, Engineering & Technology \| 2025 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges		0.4		0.5
Severance		0.0		2.0
Fees and Other		0.1		0.1
Total		0.5		2.6
Education \| 2026 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges	0.0		0.0
Severance	0.2		0.3
Fees and Other	0.0		0.0
Total	0.2		0.3
Education \| 2025 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges		0.0		0.0
Severance		0.1		0.2
Fees and Other		0.0		0.0
Total		0.1		0.2
Corporate \| 2026 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges	1.9		7.0
Severance	0.1		0.2
Fees and Other	1.6		3.4
Total	$ 3.6		$ 10.6
Corporate \| 2025 Actions
Restructuring Cost and Reserve [Line Items]
IT-related Charges		1.7		8.6
Severance		0.0		0.7
Fees and Other		1.2		4.4
Total		$ 2.9		$ 13.7