CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Mar. 29, 2013		Mar. 30, 2012
Cash flows from operating activities:
Net earnings	$ 208,071,000		$ 198,006,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Share-based compensation expense	23,391,000		25,139,000
Tax benefits from exercises of share-based payment awards	8,162,000		4,881,000
Excess tax benefits from share-based compensation	(7,503,000)		(6,144,000)
Depreciation	30,291,000		26,329,000
Amortization of intangible assets	2,215,000		1,716,000
Deferred taxes	3,714,000		(705,000)
Provision for doubtful accounts receivable	4,110,000		2,169,000
Loss on equity investment in affiliate	564,000		503,000
Other	(169,000)		(913,000)
Changes in assets and liabilities, net of effect of acquisitions:
Accounts receivable	(49,532,000)		(25,788,000)
Inventories	(46,708,000)		(28,985,000)
Prepaid expenses and other current assets	(21,344,000)		(32,718,000)
Accounts payable	(8,162,000)		(13,192,000)
Accrued expenses	(61,666,000)		(24,446,000)
Deferred revenues	18,493,000		(1,272,000)
Product warranty	(1,114,000)		(1,526,000)
Advance payments from customers	2,349,000		40,523,000
Other long-term liabilities	(2,646,000)		(4,954,000)
Net cash provided by operating activities	102,516,000		158,623,000
Cash flows from investing activities:
Purchases of property, plant and equipment	(38,853,000)		(22,225,000)
Investment in debt security	(4,610,000)		(12,419,000)
Acquisition of businesses, net of cash acquired	0		(9,832,000)
Net amounts received from/(paid) to deferred compensation plan ("DCP") trust account	400,000		(2,201,000)
Note repayment from affiliate and other, net	0		3,360,000
Other, net	(296,000)		539,000
Net cash used in investing activities	(43,359,000)		(42,778,000)
Cash flows from financing activities:
Repurchases of common stock	(193,890,000)		(75,399,000)
Proceeds from issuance of common stock to employees	80,582,000		41,816,000
Excess tax benefits from share-based compensation	7,503,000		6,144,000
Employees' taxes withheld and paid for restricted stock and restricted stock units	(4,531,000)		(4,374,000)
Net borrowings (repayments) under line of credit agreements	79,750,000		(30,793,000)
Repayments of bank borrowings	0		(3,626,000)
Other	(25,000)		(49,000)
Net cash used in financing activities	(30,611,000)		(66,281,000)
Effects of exchange rate changes on cash and cash equivalents	6,617,000		2,706,000
Net increase in cash and cash equivalents	35,163,000		52,270,000
Cash and cash equivalents at beginning of period	704,570,000	[1]	564,457,000
Cash and cash equivalents at end of period	739,733,000		616,727,000
August 2011 Repurchase Agreement
Cash flows from financing activities:
Shares received under repurchase agreement			$ 25,000,000

[1] The condensed consolidated balance sheet as of September 28, 2012 was derived from audited financial statements as of that date, but does not include all disclosures required by accounting principles generally accepted in the United States of America.