Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Shares At Cost	Stock Employee Compensation Trust (SECT)	Supplemental Retirement Plan (SERP) Trust	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest	Class A Common Stock	Class A Common Stock Treasury Shares At Cost	Class A Common Stock Stock Employee Compensation Trust (SECT)	Class B Common Stock	Class B Common Stock Treasury Shares At Cost	Class B Common Stock Stock Employee Compensation Trust (SECT)	Class B Common Stock Supplemental Retirement Plan (SERP) Trust
Beginning of year - Moog shareholder's equity, Amount at Oct. 03, 2015			$ 456,512	$ 1,579,794	$ (701,771)	$ (44,211)	$ (5,337)	$ (341,735)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares			(429)		5,003
Equity-based compensation expense			3,271
Redemption of noncontrolling interest			0
Adjustments to market - SECT, SERP and other			6,408
Net earnings attributable to Moog	$ 126,745			126,745
Dividends	0
Tax Cuts and Jobs Act, reclassification from AOCIL to retained earnings	0							0
Class A and B shares purchased					(44,932)
Issuance of shares						28,048
Purchase of shares - SECT	(28,799)					(28,799)
Purchase of shares - SERP	(2,300)						(2,300)
Adjustment to market						(4,501)	(1,309)
Other comprehensive income (loss)	(93,326)							(93,326)
End of year - Moog shareholder's equity, Amount at Oct. 01, 2016	988,411	$ 51,280	465,762	1,706,539	(741,700)	(49,463)	(8,946)	(435,061)
Beginning of year - Noncontrolling Interest, Amount at Oct. 03, 2015									$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest of acquired entity	8,763								0
Net earnings attributable to noncontrolling interest	(3,112)								0
Foreign currency translation adjustment	(37,838)								0
End of year - Noncontrolling Interest, Amount at Oct. 01, 2016									0
Beginning of year - Redeemable Noncontrolling Interest at Oct. 03, 2015	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redeemable noncontrolling interest of acquired entity	8,763								0
Net loss attributable to redeemable noncontrolling interest	(3,112)
Acquisition of noncontrolling interest	0								0
End of year - Redeemable Noncontrolling Interest at Oct. 01, 2016	5,651
Beginning of year - Common stock at Oct. 03, 2015										43,638,618			7,641,095
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Class B to Class A										28,183			(28,183)
End of year - Common stock at Oct. 01, 2016										43,666,801			7,612,912
Beginning of year - Shares at Oct. 03, 2015											(10,318,431)	0		(3,323,926)	(828,381)	(100,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued related to equity awards											152,099			0
Shares purchased											(943,755)			0
Shares issued															487,678
Purchase of shares - SECT												(425,148)			(64,216)
Purchase of shares - SERP																(50,000)
End of year - Shares at Oct. 01, 2016											(11,110,087)	(425,148)		(3,323,926)	(404,919)	(150,000)
Total shareholders' equity	988,411
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares			(7,390)		11,186
Equity-based compensation expense			4,582
Redemption of noncontrolling interest			3,125
Adjustments to market - SECT, SERP and other			26,167
Net earnings attributable to Moog	141,280			141,280
Dividends	0
Tax Cuts and Jobs Act, reclassification from AOCIL to retained earnings	0							0
Class A and B shares purchased					(8,643)
Issuance of shares						867
Purchase of shares - SECT	(18,685)					(18,685)
Purchase of shares - SERP	0						0
Adjustment to market						(22,638)	(3,528)
Other comprehensive income (loss)	99,570							99,570
End of year - Moog shareholder's equity, Amount at Sep. 30, 2017	1,214,304	51,280	492,246	1,847,819	(739,157)	(89,919)	(12,474)	(335,491)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest of acquired entity	0								0
Net earnings attributable to noncontrolling interest	(870)								0
Foreign currency translation adjustment	27,460								0
End of year - Noncontrolling Interest, Amount at Sep. 30, 2017									0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redeemable noncontrolling interest of acquired entity	0								0
Net loss attributable to redeemable noncontrolling interest	(870)
Acquisition of noncontrolling interest	(4,781)								0
End of year - Redeemable Noncontrolling Interest at Sep. 30, 2017	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Class B to Class A										37,485			(37,485)
End of year - Common stock at Sep. 30, 2017										43,704,286			7,575,427
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued related to equity awards											284,048			7,380
Shares purchased											(106,964)			(17,381)
Shares issued															15,000
Purchase of shares - SECT												0			(264,834)
Purchase of shares - SERP																0
End of year - Shares at Sep. 30, 2017											(10,933,003)	(425,148)		(3,333,927)	(654,753)	(150,000)
Total shareholders' equity	1,214,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares			(4,321)		8,881
Equity-based compensation expense			5,804
Redemption of noncontrolling interest			175
Adjustments to market - SECT, SERP and other			8,353
Net earnings attributable to Moog	96,507			96,507
Dividends				(17,889)
Tax Cuts and Jobs Act, reclassification from AOCIL to retained earnings	(47,077)			47,077				(47,077)
Class A and B shares purchased					(8,218)
Issuance of shares						4,714
Purchase of shares - SECT	(30,358)					(30,358)
Purchase of shares - SERP	(55,000)						(55,000)
Adjustment to market						(2,886)	(5,467)
Other comprehensive income (loss)	10,357							10,387
End of year - Moog shareholder's equity, Amount at Sep. 29, 2018	1,224,986	$ 51,280	$ 502,257	$ 1,973,514	$ (738,494)	$ (118,449)	$ (72,941)	$ (372,181)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest of acquired entity	0								1,927
Net earnings attributable to noncontrolling interest	121								121
Foreign currency translation adjustment	(16,279)								(30)
End of year - Noncontrolling Interest, Amount at Sep. 29, 2018									0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redeemable noncontrolling interest of acquired entity	0								1,927
Net loss attributable to redeemable noncontrolling interest	0
Acquisition of noncontrolling interest	0								$ 2,018
End of year - Redeemable Noncontrolling Interest at Sep. 29, 2018	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Class B to Class A										80,203			(80,203)
End of year - Common stock at Sep. 29, 2018										43,784,489			7,495,224
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued related to equity awards											104,842			64,664
Shares purchased											(44,414)			(54,733)
Shares issued															57,277
Purchase of shares - SECT												0			(386,296)
Purchase of shares - SERP																(726,170)
End of year - Shares at Sep. 29, 2018											(10,872,575)	(425,148)		(3,323,996)	(983,772)	(876,170)
Total shareholders' equity	$ 1,224,986