Restructuring and Severance Charges - Summary of Restructuring and Severance Costs, By Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 28, 2018	Jul. 29, 2018	Apr. 29, 2018	Jan. 28, 2018	Oct. 29, 2017	Jul. 30, 2017	Apr. 30, 2017	Jan. 29, 2017	Oct. 28, 2018	Oct. 29, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs	$ 4,512	$ 3,108	$ 104	$ 518	$ 307	$ 249	$ 199	$ 624	$ 8,242	$ 1,379
Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										1,301
Severance and benefit costs | Former Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs		$ 2,600							2,635
Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										78
2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs	4,300								4,352
2018 Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs	$ 1,500								1,526
2018 Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									2,826
Other Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									1,255
Other Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									1,009
Other Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									246
Operating Segments | North American Staffing
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									932	382
Operating Segments | North American Staffing | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										294
Operating Segments | North American Staffing | Severance and benefit costs | Former Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | North American Staffing | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										88
Operating Segments | North American Staffing | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									829
Operating Segments | North American Staffing | 2018 Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									401
Operating Segments | North American Staffing | 2018 Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									428
Operating Segments | North American Staffing | Other Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									103
Operating Segments | North American Staffing | Other Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									103
Operating Segments | North American Staffing | Other Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | International Staffing
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									328	14
Operating Segments | International Staffing | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										24
Operating Segments | International Staffing | Severance and benefit costs | Former Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | International Staffing | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										(10)
Operating Segments | International Staffing | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | International Staffing | 2018 Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | International Staffing | 2018 Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | International Staffing | Other Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									328
Operating Segments | International Staffing | Other Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									210
Operating Segments | International Staffing | Other Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									118
Operating Segments | North American MSP
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									145	0
Operating Segments | North American MSP | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										0
Operating Segments | North American MSP | Severance and benefit costs | Former Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | North American MSP | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										0
Operating Segments | North American MSP | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | North American MSP | 2018 Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | North American MSP | 2018 Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									0
Operating Segments | North American MSP | Other Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									145
Operating Segments | North American MSP | Other Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									37
Operating Segments | North American MSP | Other Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									108
Corporate & Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									6,837	983
Corporate & Other | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										983
Corporate & Other | Severance and benefit costs | Former Chief Executive Officer
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									2,635
Corporate & Other | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs										$ 0
Corporate & Other | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									3,523
Corporate & Other | 2018 Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									1,125
Corporate & Other | 2018 Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									2,398
Corporate & Other | Other Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									679
Corporate & Other | Other Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									659
Corporate & Other | Other Plan | Other
Restructuring Cost and Reserve [Line Items]
Restructuring and severance costs									$ 20