Revenue Recognition - Schedule of Disaggregation of Revenue, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 03, 2019	Jul. 28, 2019	Apr. 28, 2019	Jan. 27, 2019	Oct. 28, 2018	Jul. 29, 2018	Apr. 29, 2018	Jan. 28, 2018	Nov. 03, 2019	Oct. 28, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 258,408	$ 233,176	$ 252,070	$ 253,436	$ 264,805	$ 257,808	$ 263,219	$ 253,338	$ 997,090	$ 1,039,170
Domestic
Disaggregation of Revenue [Line Items]
Revenues									878,095	916,561
International
Disaggregation of Revenue [Line Items]
Revenues									118,995	122,609
Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									950,595
Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									14,880
Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									17,023
Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									14,592
Operating Segments | North American Staffing
Disaggregation of Revenue [Line Items]
Revenues									830,947	860,544
Operating Segments | North American Staffing | Domestic
Disaggregation of Revenue [Line Items]
Revenues									827,641
Operating Segments | North American Staffing | International
Disaggregation of Revenue [Line Items]
Revenues									3,306
Operating Segments | North American Staffing | Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									822,550
Operating Segments | North American Staffing | Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									8,397
Operating Segments | North American Staffing | Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									0
Operating Segments | North American Staffing | Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									0
Operating Segments | International Staffing
Disaggregation of Revenue [Line Items]
Revenues									114,377	117,351
Operating Segments | International Staffing | Domestic
Disaggregation of Revenue [Line Items]
Revenues									0
Operating Segments | International Staffing | International
Disaggregation of Revenue [Line Items]
Revenues									114,377
Operating Segments | International Staffing | Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									105,815
Operating Segments | International Staffing | Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									4,600
Operating Segments | International Staffing | Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									3,962
Operating Segments | International Staffing | Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									0
Operating Segments | North American MSP
Disaggregation of Revenue [Line Items]
Revenues									39,010	29,986
Operating Segments | North American MSP | Domestic
Disaggregation of Revenue [Line Items]
Revenues									38,337
Operating Segments | North American MSP | International
Disaggregation of Revenue [Line Items]
Revenues									673
Operating Segments | North American MSP | Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									22,987
Operating Segments | North American MSP | Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									2,962
Operating Segments | North American MSP | Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									13,061
Operating Segments | North American MSP | Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other
Disaggregation of Revenue [Line Items]
Revenues									15,320	$ 35,228
Corporate & Other | Domestic
Disaggregation of Revenue [Line Items]
Revenues									14,592
Corporate & Other | International
Disaggregation of Revenue [Line Items]
Revenues									728
Corporate & Other | Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									728
Corporate & Other | Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other | Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									0
Corporate & Other | Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									14,592
Eliminations
Disaggregation of Revenue [Line Items]
Revenues									(2,564)
Eliminations | Domestic
Disaggregation of Revenue [Line Items]
Revenues									(2,475)
Eliminations | International
Disaggregation of Revenue [Line Items]
Revenues									(89)
Eliminations | Staffing Services
Disaggregation of Revenue [Line Items]
Revenues									(1,485)
Eliminations | Direct Placement Services
Disaggregation of Revenue [Line Items]
Revenues									(1,079)
Eliminations | Managed Service Programs
Disaggregation of Revenue [Line Items]
Revenues									0
Eliminations | Call Center Services
Disaggregation of Revenue [Line Items]
Revenues									$ 0