Segment Disclosures - Summary of Assets by Reportable Operating Segment (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 03, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012
Assets:
TOTAL ASSETS	$ 500,312	$ 501,771	$ 525,050	$ 524,457	$ 557,572	$ 572,765	$ 593,431	$ 556,674
Operating Segments [Member]
Assets:
TOTAL ASSETS	375,690				450,449
Operating Segments [Member] | Staffing Services [Member]
Assets:
TOTAL ASSETS	309,726				363,402
Operating Segments [Member] | Computer Systems [Member]
Assets:
TOTAL ASSETS	24,428				42,502
Operating Segments [Member] | Other [Member]
Assets:
TOTAL ASSETS	41,536				44,545
Corporate, Non-Segment [Member] | Cash, Investments and Other Corporate Assets [Member]
Assets:
TOTAL ASSETS	$ 124,622				$ 107,123