CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Revenues:
Product	$ 541,940	$ 546,468	$ 1,023,376	$ 1,014,476
Service	236,566	221,890	466,632	432,280
Total revenues	778,506	768,358	1,490,008	1,446,756
Cost of revenues:
Product	344,512	347,445	643,046	642,370
Service	105,684	101,275	209,073	193,660
Total cost of revenues	450,196	448,720	852,119	836,030
Gross margin	328,310	319,638	637,889	610,726
Operating expenses:
Research and development	60,677	50,903	118,680	98,020
Selling, general and administrative	114,959	113,031	224,541	219,512
Litigation settlement	25,130		25,130
Total operating expenses	200,766	163,934	368,351	317,532
Operating earnings	127,544	155,704	269,538	293,194
Interest income	2,458	1,705	4,723	3,244
Interest expense	(1,855)	(1,026)	(3,748)	(1,892)
Earnings before taxes	128,147	156,383	270,513	294,546
Taxes on earnings	35,359	43,595	79,765	86,475
Net earnings	$ 92,788	$ 112,788	$ 190,748	$ 208,071
Net earnings per share - basic	$ 0.89	$ 1.04	$ 1.82	$ 1.91
Net earnings per share - diluted	$ 0.88	$ 1.02	$ 1.79	$ 1.88
Shares used in the calculation of net earnings per share:
Weighted average shares outstanding - basic	104,152	108,841	105,038	109,038
Weighted average shares outstanding - diluted	105,446	110,650	106,414	110,863