Consolidated Statements Of Earnings - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 2,904,663	$ 2,709,468	$ 2,497,524
Cost of sales	2,088,831	1,923,179	1,763,758
Inventory write-down - restructuring	0	12,198	0
Gross profit	815,832	774,091	733,766
Research and development	126,453	129,838	144,157
Selling, general and administrative	404,653	388,434	346,281
Interest	39,269	36,238	34,551
Restructuring	0	28,794	0
Goodwill impairment	0	0	0
Other	11,699	6,950	27,066
Earnings before income taxes	233,758	183,837	181,711
Income taxes	54,010	87,209	41,301
Net earnings attributable to Moog and noncontrolling interest	179,748	96,628	140,410
Net earnings (loss) attributable to noncontrolling interest	0	121	(870)
Net earnings attributable to Moog	$ 179,748	$ 96,507	$ 141,280
Net earnings per share attributable to Moog
Basic	$ 5.16	$ 2.71	$ 3.94
Diluted	5.11	2.68	3.90
Dividends declared per share	$ 1.00	$ 0.50	$ 0
Average common shares outstanding
Basic	34,854,614	35,661,638	35,852,448
Diluted	35,178,968	36,052,307	36,230,043