Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Revenue:
Product	$ 497,620	$ 476,306	$ 400,840
Service	71,819	65,950	66,528
Total Revenue	569,439	542,256	467,368
Cost of Sales:
Product	296,256	272,706	231,040
Service	41,244	33,358	34,338
Total Cost of Sales	337,500	306,064	265,378
Gross Profit	231,939	236,192	201,990
Operating Expenses:
Selling and marketing	81,009	74,637	69,781
General and administrative	48,163	51,401	44,230
Research and development	22,812	21,893	14,785
U.S. Government settlement		7,750
Total Operating Expenses	151,984	155,681	128,796
Income From Operations	79,955	80,511	73,194
Interest expense, net	(334)	(305)	(915)
Other (expense) income, net	(367)	(426)	1,026
Income Before Income Taxes	79,254	79,780	73,305
Provision for Income Taxes	21,448	28,224	22,363
Net Income	$ 57,806	$ 51,556	$ 50,942
Earnings Per Share
Basic (in dollars per share)	$ 3.69	$ 3.24	$ 3.29
Diluted (in dollars per share)	$ 3.64	$ 3.21	$ 3.24
Dividends declared per share	$ 1.20	$ 1.05	$ 0.85