Consolidated Condensed Statements Of Earnings - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 02, 2016	Apr. 04, 2015	Apr. 02, 2016	Apr. 04, 2015
Income Statement [Abstract]
Net sales	$ 611,142	$ 637,246	$ 1,179,599	$ 1,267,769
Cost of sales	431,955	463,696	838,952	910,301
Gross profit	179,187	173,550	340,647	357,468
Research and development	39,731	31,404	74,529	62,725
Selling, general and administrative	82,771	92,158	165,765	189,985
Interest	8,935	7,669	17,257	13,037
Restructuring	8,069	0	8,342	0
Other	(936)	921	(1,518)	885
Earnings before income taxes	40,617	41,398	76,272	90,836
Income taxes	9,710	9,305	19,205	23,478
Net earnings attributable to common shareholders and noncontrolling interest	30,907	32,093	57,067	67,358
Net earnings (loss) attributable to noncontrolling interest	(143)	0	(224)	0
Net earnings attributable to common shareholders	$ 31,050	$ 32,093	$ 57,291	$ 67,358
Net earnings per share attributable to common shareholders
Basic	$ 0.85	$ 0.81	$ 1.57	$ 1.68
Diluted	$ 0.85	$ 0.80	$ 1.55	$ 1.66
Average common shares outstanding
Basic	36,481,996	39,601,795	36,597,972	40,116,731
Diluted	36,693,190	39,984,668	36,860,760	40,550,814