Unaudited Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Oct. 02, 2011
Net revenue	$ 315,210	$ 301,800	$ 961,485	$ 871,863
Cost of revenue	217,522	205,490	669,310	597,390
Gross profit	97,688	96,310	292,175	274,473
Operating expenses:
Research and development	17,399	12,738	46,277	35,102
Sales and marketing	37,600	39,600	114,247	115,284
General and administrative	11,888	10,851	33,520	31,044
Restructuring and other changes	0	0	0	2,094
Litigation reserves, net	269	44	420	(234)
Total operating expenses	67,156	63,233	194,464	183,290
Income from operations	30,532	33,077	97,711	91,183
Interest income	109	115	344	350
Other income (expense), net	3,070	(267)	2,823	(938)
Income before income taxes	33,711	32,925	100,878	90,595
Provision for income taxes	9,920	6,178	30,418	22,062
Net income	$ 23,791	$ 26,747	$ 70,460	$ 68,533
Net income per share:
Basic (in dollars per share)	$ 0.62	$ 0.71	$ 1.86	$ 1.85
Diluted (in dollars per share)	$ 0.61	$ 0.70	$ 1.82	$ 1.81
Weighted average shares outstanding used to compute net income per share:
Basic (in shares)	38,162	37,483	37,978	36,967
Diluted (in shares)	38,802	38,080	38,682	37,812