Other Current Liability (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jan. 01, 2012
Schedule of Other Current Liabilities [Line Items]
Accrued compensation	$ 15,696	$ 13,019
Accrued restructuring and other exit costs	1,455	5,660
Deferred revenue	6,205	5,345
Accrued non-income taxes	4,224	4,440
Deferred income taxes	2,881	2,887
Other current liabilities	15,127	17,363
Total	$ 45,588	$ 48,714