Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Restructuring - Narrative (Details) - USD ($) $ in Millions	Apr. 02, 2017	Oct. 01, 2017	Jul. 02, 2017	Jan. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2.4
Restructuring accrual	2.2	$ 0.5	$ 0.9	$ 0.5
Global Talent Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2.0
Severance costs	2.0
Americas Staffing
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0.4
Severance costs	$ 0.4