CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Revenues:
Product	$ 574,273	$ 546,807	$ 1,065,946	$ 1,003,604
Service contracts and other	194,085	173,467	380,810	342,008
Total revenues	768,358	720,274	1,446,756	1,345,612
Cost of revenues:
Product	354,153	337,620	651,807	612,623
Service contracts and other	94,567	85,958	184,223	167,534
Total cost of revenues	448,720	423,578	836,030	780,157
Gross margin	319,638	296,696	610,726	565,455
Operating expenses:
Research and development	50,903	47,067	98,020	90,832
Selling, general and administrative	113,031	105,830	219,512	201,905
Total operating expenses	163,934	152,897	317,532	292,737
Operating earnings	155,704	143,799	293,194	272,718
Interest income	1,705	1,109	3,244	2,259
Interest expense	(1,026)	(707)	(1,892)	(1,536)
Earnings before taxes	156,383	144,201	294,546	273,441
Taxes on earnings	43,595	36,429	86,475	75,435
Net earnings	$ 112,788	$ 107,772	$ 208,071	$ 198,006
Net earnings per share-basic	$ 1.04	$ 0.96	$ 1.91	$ 1.76
Net earnings per share-diluted	$ 1.02	$ 0.94	$ 1.88	$ 1.73
Shares used in the calculation of net earnings per share:
Weighted average shares outstanding-basic	108,841	112,354	109,038	112,282
Weighted average shares outstanding-diluted	110,650	114,513	110,863	114,428