Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 45,840	$ 50,414
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	19,386	17,179
Amortization of intangible assets	7,313	4,970
Deferred income taxes	(225)	(2,095)
Loss on disposal of property and equipment	0	572
Stock-based compensation	14,276	12,310
Excess tax benefit from stock-based compensation arrangements	0	(2,715)
Other non-cash (income) expense	483	140
Changes in assets and liabilities, net of effect of acquisitions:
Accounts receivable	(6,981)	(3,810)
Inventories	(76)	(11,721)
Prepaid expenses and other assets	(9,936)	(21,181)
Other assets	(535)	1,510
Accounts payable	10,487	(1,100)
Income taxes payable/receivable	(23,800)	(12,180)
Other current liabilities	8,902	12,237
Other long-term liabilities	1,625	(819)
Net cash provided by operating activities	66,759	43,711
Cash flows from investing activities:
Purchases of property and equipment	(15,366)	(30,613)
Proceeds from dispositions of property and equipment	131	0
Purchases of available-for-sale securities	(170,306)	(188,542)
Proceeds from sales and maturities of available-for-sale securities	206,652	114,776
Acquisition of businesses, net of cash acquired	(67,289)	0
Net cash used in investing activities	(46,178)	(104,379)
Cash flows from financing activities:
Short-term borrowings	9,540	9,262
Repayments of short-term borrowing	(9,540)	(9,262)
Capital lease repayments	(13)	(11)
Issuance of common stock under employee stock option and purchase plans	15,708	11,537
Cash dividend paid on common stock	(24,040)	0
Repurchase of common stock	0	(24,999)
Net settlement of restricted common stock	(4,163)	(4,514)
Excess tax benefits from stock-based compensation arrangements	0	2,715
Net cash used in financing activities	(12,508)	(15,272)
Effect of exchange rate changes on cash and cash equivalents	5,477	(8,541)
Net increase (decrease) in cash and cash equivalents	13,550	(84,481)
Cash and cash equivalents, beginning of period	67,761	167,061
Cash and cash equivalents, end of period	81,311	82,580
Cash paid during the period for:
Interest	60	71
Income taxes	43,470	45,422
Cash received during the period for:
Income taxes	7,760	11,055
Non-cash investing and financing activities:
Unpaid property and equipment	$ 1,850	$ 1,611