Consolidated Condensed Statements Of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Mar. 31, 2012	Apr. 02, 2011
Income Statement [Abstract]
NET SALES	$ 624,970	$ 574,226	$ 1,225,588	$ 1,128,660
COST OF SALES	440,540	406,966	856,023	796,847
GROSS PROFIT	184,430	167,260	369,565	331,813
Research and development	26,897	28,154	56,087	51,629
Selling, general and administrative	97,697	87,504	193,495	173,345
Interest	8,636	8,970	17,182	18,181
Other	1,411	(673)	63	(427)
EARNINGS BEFORE INCOME TAXES	49,789	43,305	102,738	89,085
INCOME TAXES	14,368	12,690	30,944	25,063
NET EARNINGS	$ 35,421	$ 30,615	$ 71,794	$ 64,022
NET EARNINGS PER SHARE
Basic	$ 0.78	$ 0.67	$ 1.59	$ 1.41
Diluted	$ 0.77	$ 0.66	$ 1.57	$ 1.39
AVERAGE COMMON SHARES OUTSTANDING
Basic	45,227,921	45,419,121	45,219,828	45,404,006
Diluted	45,781,587	46,058,991	45,730,777	45,982,772