Balance Sheet Account Details (Details 7) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Accrued Liabilities, Current [Abstract]
Accrued compensation expenses	$ 82,705	$ 59,864
Deferred revenue, current portion	50,834	55,817
Accrued taxes payable	30,435	23,021
Customer deposits	13,569	13,765
Reserve for product warranties	10,407	10,136	11,966	16,761
Acquisition related contingent consideration liability, current portion	6,719	9,490
Facility exit obligation, current portion	5,570	8,063
Unsettled short-term investment purchase		9,154
Other	18,881	12,567
Total accrued liabilities	$ 219,120	$ 201,877