Segment Disclosures - Segment Earnings (loss) From Operations (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 02, 2023	Apr. 03, 2022
Earnings (loss) from Operations
Gross profit	$ 254.1	$ 258.6
SG&A expenses	(243.4)	(236.1)
Earnings (loss) from operations	10.7	23.4
Loss on investment in Persol Holdings	0.0	(67.2)
Loss on currency translation from liquidation of subsidiary	0.0	(20.4)
Other income (expense), net	2.0	2.8
Earnings (loss) before taxes and equity in net earnings (loss) of affiliate	12.7	(61.4)
Corporate
Earnings (loss) from Operations
Earnings (loss) from operations	(26.4)	(24.5)
Professional & Industrial \| Reporting Segments
Earnings (loss) from Operations
Gross profit	69.8	83.1
SG&A expenses	(67.5)	(71.4)
Earnings (loss) from operations	2.3	11.7
Science, Engineering & Technology \| Reporting Segments
Earnings (loss) from Operations
Gross profit	71.3	73.8
SG&A expenses	(52.8)	(53.2)
Earnings (loss) from operations	18.5	20.6
Education \| Reporting Segments
Earnings (loss) from Operations
Gross profit	39.3	26.6
SG&A expenses	(23.8)	(18.6)
Earnings (loss) from operations	15.5	8.0
Outsourcing & Consulting \| Reporting Segments
Earnings (loss) from Operations
Gross profit	41.6	37.3
SG&A expenses	(40.5)	(34.3)
Earnings (loss) from operations	1.1	3.0
International \| Reporting Segments
Earnings (loss) from Operations
Gross profit	32.1	37.8
SG&A expenses	(32.4)	(33.2)
Earnings (loss) from operations	$ (0.3)	$ 4.6

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