Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 28, 2012	Dec. 30, 2011
Cash flows from operating activities:
Net income	$ 66,493	$ 57,126
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	17,696	15,750
Depreciation	18,518	17,274
Amortization of intangible assets and other	8,156	6,685
Contribution of common shares to savings and retirement plans	1,223	1,011
Deferred income taxes	1,610	324
Excess tax benefit from share-based payments	(3,060)	(5,326)
Other	38	835
Changes in assets and liabilities net of acquired balances:
Receivables, net	45,440	(22,051)
Inventory	3,534	20,278
Other current and long-term assets	(14)	(5,269)
Accounts payable	(29,221)	(19,260)
Other current and long-term liabilities	17,267	9,855
Net cash provided by operating activities	147,680	77,232
Cash flows from investing activities:
Capital expenditures	(26,423)	(6,424)
Sales and maturities of investments	807	0
Net cash used in investing activities	(25,616)	(6,424)
Cash flows from financing activities:
Retirement of debt	0	(14,926)
Excess tax benefit from share-based payments	3,060	5,326
Change in restricted cash	0	(150)
Repurchase of common stock - tax withholdings on equity awards	(15,209)	(15,355)
Repurchase of common stock - share repurchase program	(41,672)	(12,405)
Net proceeds from exercise of stock options	3,002	2,251
Net cash used in financing activities	(50,819)	(35,259)
Net decrease in cash and cash equivalents	71,245	35,549
Cash and cash equivalents at beginning of period	306,293	410,087
Cash and cash equivalents at end of period	377,538	445,636
Supplemental cash flow disclosures:
Income taxes paid	527	445
Interest paid	$ 0	$ 53