Quarterly Financial Information - Selected Consolidated Cash Flows Data (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011	Oct. 28, 2012	Oct. 30, 2011	Oct. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (2,012)	$ (11,241)	$ 547	$ (897)	$ 16,004	$ (2,043)	$ (2,271)	$ 3,939	$ (13,603)	$ 15,629	$ (96,375)
Adjustments to reconcile net loss to cash provided by (used in) operating activities:
Depreciation and amortization	4,062	4,022	4,075	4,354	4,757	4,756	5,004	5,218	16,513	19,735	23,693
Provisions for doubtful accounts and sales allowances	(86)	333	5	(138)	684	220	(1,758)	380	114	(474)	880
Unrealized foreign currency exchange loss (gain)	216	(427)	8	475	(542)	(607)	1,850	(220)	272	481	(253)
(Gain) loss on dispositions of property, equipment and software	(4,392)	(367)	(32)	(107)	(704)	(98)	(756)	(491)	(4,898)	(2,049)	99
Deferred income tax (benefit) provision	(14)	1,348	203	269	(3,561)	539	542	(2,453)	1,806	(4,933)	67,251
Share-based compensation expense related to employee stock options	(27)	(5)	105	54	82	107	143	128	127	460	1,044
Change in operating assets and liabilities:
Trade accounts receivable	(6,286)	11,663	(48,654)	28,558	(6,377)	813	(23,062)	37,981	(14,719)	9,355	(36,879)
Restricted cash related to customer contracts	12,082	13,451	(6,752)	(5,167)	(4,423)	3,892	(1,386)	2,883	13,614	966	(373)
Prepaid insurance and other assets	2,363	(3,864)	(84)	28	(1,355)	(2,036)	(2,886)	5,023	(1,557)	(1,254)	16,623
Accounts payable	(5,618)	(17,865)	11,265	(851)	6,569	(3,019)	2,568	(9,186)	(13,069)	(3,068)	(15,939)
Accrued expenses	(1,307)	(5,809)	4,969	3,854	7,465	(2,259)	(8,260)	(2,769)	1,707	(5,823)	11,076
Deferred revenue, net	(9,686)	(779)	(1,700)	(14,262)	(22,071)	(10,422)	(8,930)	(15,460)	(26,427)	(56,883)	5,945
Other liabilities	10	44	(54)	(79)	492	(454)	(265)	(138)	(79)	(365)	(2,012)
Income taxes	1,303	(271)	(588)	(682)	3,674	(2,849)	(749)	(205)	(238)	(129)	1,854
Net cash provided by (used in) operating activities	(9,392)	(9,767)	(36,687)	15,409	694	(13,460)	(40,216)	24,630	(40,437)	(28,352)	(23,366)
CASH FLOWS FROM INVESTING ACTIVITIES:
Sales of investments	445	399	358	718	1,431	357	498	570	1,920	2,856	3,251
Purchases of investments	(442)	(389)	(360)	(505)	(1,514)	(424)	(570)	(435)	(1,696)	(2,943)	(3,170)
Acquisitions, net				(1,822)					(1,822)
Proceeds from sales of property, equipment and software	5,419	1,379	375	485	1,878	358	1,030	529	7,658	3,795	788
Purchases of property, equipment, and software	(3,165)	(4,627)	(2,960)	(2,950)	(3,110)	(5,243)	(4,321)	(5,243)	(13,702)	(17,917)	(13,244)
Net cash provided by (used in) investing activities	2,257	(3,238)	(2,587)	(4,074)	(1,315)	(4,952)	(3,363)	(4,579)	(7,642)	(14,209)	(12,375)
CASH FLOWS FROM FINANCING ACTIVITIES:
Increase in cash restricted as collateral for borrowings	(328)	292	(18)	(1,337)	913	(5,316)	1,311	(669)	(1,391)	(3,761)	(30,429)
Net change in short-term borrowings	1,435	18,415	20,312	(7,708)	10,585	19,198	9,503	777	32,454	40,063	(1,257)
Repayment of long-term debt	(183)	(178)	(175)	(172)	(168)	(165)	(161)	(158)	(708)	(652)	(731)
Net cash provided by (used in) financing activities	924	18,529	20,119	(9,217)	11,330	13,717	10,653	(50)	30,355	35,650	(32,401)
Effect of exchange rate changes on cash and cash equivalents	(424)	(831)	1,181	(287)	579	(30)	(280)	125	(360)	394	461
Net increase (decrease) in cash and cash equivalents	(6,635)	4,693	(17,974)	1,832	11,288	(4,725)	(33,206)	20,126	(18,084)	(6,517)	(67,681)
Cash and cash equivalents, beginning of year	33,118	28,425	46,399	44,567	33,279	38,004	71,210	51,084	44,567	51,084	118,765
Cash and cash equivalents, end of year	26,483	33,118	28,425	46,399	44,567	33,279	38,004	71,210	26,483	44,567	51,084
Cash paid during the year
Interest expense	732	740	697	697	672	639	616	658	2,866	2,585	2,584
Income taxes	$ 1,246	$ 786	$ 833	$ 875	$ 1,987	$ 2,372	$ 824	$ 674	$ 3,740	$ 5,857	$ 4,074