Segment Disclosures - Summary of Assets by Reportable Operating Segment (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011
Assets:
TOTAL ASSETS	$ 557,572	$ 572,765	$ 593,431	$ 556,674	$ 579,479	$ 569,513	$ 571,275	$ 576,130
Operating Segments [Member]
Assets:
TOTAL ASSETS	442,587				444,971
Operating Segments [Member] | Staffing Services [Member]
Assets:
TOTAL ASSETS	355,540				351,175
Operating Segments [Member] | Computer Systems [Member]
Assets:
TOTAL ASSETS	42,502				46,401
Operating Segments [Member] | Other [Member]
Assets:
TOTAL ASSETS	44,545				47,395
Corporate, Non-Segment [Member] | Cash, Investments and Other Corporate Assets [Member]
Assets:
TOTAL ASSETS	$ 114,985				$ 134,508