Revision of Previously Issued Consolidated Financial Statements (Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 27, 2025	Jun. 28, 2025	Mar. 29, 2025	Dec. 28, 2024	Sep. 28, 2024	Jun. 29, 2024	Mar. 30, 2024	Dec. 30, 2023	Sep. 30, 2023	Oct. 01, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents	$ 62,013	$ 58,191	$ 62,124	$ 73,448	$ 61,694	$ 50,572	$ 59,066	$ 126,398	$ 68,959
Restricted cash	200	823	602	360	123	946	665	430	185
Receivables, net	506,768	529,753	537,179	472,310	419,971	452,967	419,399	381,609	447,423
Unbilled receivables	744,352	719,002	719,569	722,384	690,572	745,680	773,379	743,497	634,787
Inventory, Net	914,302	924,682	901,221	884,828	862,541	828,518	807,852	783,668	718,489
Prepaid expenses and other current assets	142,345	153,479	95,554	77,783	87,745	72,596	75,911	59,577	64,262
Assets, Current	2,369,980	2,385,930	2,316,249	2,231,113	2,122,646	2,151,279	2,136,272	2,095,179	1,934,105
Property, Plant and Equipment, Net	1,019,906	988,125	960,015	934,087	928,588	904,710	886,045	856,462	826,260
Operating lease right-of-use assets	52,799	52,877	55,354	56,744	52,591	57,669	57,074	59,489	56,067
Goodwill	842,313	802,089	825,415	818,503	833,764	827,319	828,469	833,413	821,301	$ 805,320
Intangible Assets, Net (Excluding Goodwill)	66,101	57,182	57,915	59,469	63,479	66,422	68,876	72,663	71,637
Deferred income taxes	22,459	41,121	34,961	27,690	23,884	24,101	15,556	9,250	8,723
Other Assets, Noncurrent	52,497	56,696	57,146	54,242	52,695	48,887	49,390	53,809	50,254
Assets	4,426,055	4,384,020	4,307,055	4,181,848	4,077,647	4,080,387	4,041,682	3,980,265	3,768,347
Current installments of long-term debt	1,563				0
Accounts Payable, Current	318,402	289,160	293,952	267,954	293,888	267,194	268,631	262,055	265,473
Accrued compensation	106,040	98,292	69,411	68,366	104,027	101,531	76,161	65,949	112,654
Contract advances and progress billings	372,988	301,270	307,640	293,160	302,126	353,736	405,230	446,547	337,707
Accrued liabilities and other	320,075	318,043	297,637	301,463	313,373	290,824	281,741	253,143	241,813
Liabilities, Current	1,119,068	1,006,765	968,640	930,943	1,013,414	1,013,285	1,031,763	1,027,694	957,647
Long-term debt, excluding current installments	944,123	1,081,674	1,165,662	1,104,151	874,139	958,127	948,615	920,103	863,092
Liability, Defined Benefit Plan, Noncurrent	157,218	177,688	172,395	162,222	167,161	160,635	160,265	160,825	157,455
Deferred Income Tax Liabilities, Net	32,600	27,614	26,336	26,036	27,652	24,619	24,546	32,086	33,475
Other Liabilities, Noncurrent	180,491	177,233	167,982	171,962	166,464	162,162	158,213	161,816	154,921
Liabilities	2,433,500	2,470,974	2,501,015	2,395,314	2,248,830	2,318,828	2,323,402	2,302,524	2,166,590
Additional Paid in Capital	839,328	769,935	750,119	777,060	784,509	726,656	702,272	673,261	608,270
Retained earnings	2,834,548	2,779,325	2,729,980	2,684,515	2,635,950	2,602,371	2,552,209	2,506,656	2,462,640
Treasury Stock, Value	(1,209,200)	(1,205,305)	(1,204,032)	(1,141,242)	(1,082,240)	(1,073,027)	(1,071,558)	(1,065,654)	(1,057,938)
Stock Employee Compensation Trust	(195,491)	(173,214)	(162,945)	(186,219)	(194,049)	(167,757)	(153,295)	(146,373)	(114,769)
Common Stock Issued, Employee Stock Trust	(170,191)	(147,042)	(141,490)	(156,865)	(163,821)	(140,449)	(129,709)	(119,869)	(93,126)
Accumulated other comprehensive loss	(157,719)	(161,933)	(216,872)	(241,995)	(202,812)	(237,515)	(232,919)	(221,560)	(254,600)
Total Moog shareholders' equity	1,992,555	1,913,046	1,806,040	1,786,534	1,828,817	1,761,559	1,718,280	1,677,741	1,601,757
Liabilities and Equity	4,426,055	4,384,020	4,307,055	4,181,848	4,077,647	4,080,387	4,041,682	3,980,265	3,768,347
Class A Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock	43,864	43,864	43,852	43,844	43,835	43,835	43,826	43,826	43,822
Class B Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock	$ 7,416	7,416	7,428	7,436	7,445	7,445	7,454	7,454	7,458
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents		58,191	62,124	73,448	61,694	50,572	59,066	126,398	68,959
Restricted cash		823	602	360	123	946	665	430	185
Receivables, net		529,753	537,179	472,310	419,971	452,967	419,399	381,609	434,723
Unbilled receivables		734,976	733,762	735,759	709,014	766,445	794,167	760,561	706,601
Inventory, Net		924,682	902,551	886,088	863,702	831,377	810,483	788,040	724,002
Prepaid expenses and other current assets		153,479	95,554	77,783	86,245	70,081	73,165	59,577	50,862
Assets, Current		2,401,904	2,331,772	2,245,748	2,140,749	2,172,388	2,156,945	2,116,615	1,985,332
Property, Plant and Equipment, Net		988,125	960,015	934,087	929,357	886,013	869,303	842,682	814,696
Operating lease right-of-use assets		52,877	55,354	56,744	52,591	57,669	57,074	59,489	56,067
Goodwill		802,089	825,415	818,503	833,764	827,319	828,469	833,413	821,301
Intangible Assets, Net (Excluding Goodwill)		57,182	57,915	59,469	63,479	66,422	68,876	72,663	71,637
Deferred income taxes		37,701	31,638	24,219	20,991	9,050	9,063	9,284	8,749
Other Assets, Noncurrent		56,696	57,146	54,242	52,695	48,887	49,390	53,809	50,254
Assets		4,396,574	4,319,255	4,193,012	4,093,626	4,067,748	4,039,120	3,987,955	3,808,036
Accounts Payable, Current		289,160	293,052	267,054	292,988	266,294	267,731	261,155	264,573
Accrued compensation		98,292	69,411	68,366	101,127	98,981	73,961	64,099	111,154
Contract advances and progress billings		298,648	306,772	293,550	299,732	353,496	404,876	445,706	377,977
Accrued liabilities and other		302,514	282,180	284,849	305,180	269,633	257,960	238,871	211,769
Liabilities, Current		988,614	951,415	913,819	999,027	988,404	1,004,528	1,009,831	965,473
Long-term debt, excluding current installments		1,081,674	1,165,662	1,104,151	874,139	958,127	948,615	920,103	863,092
Liability, Defined Benefit Plan, Noncurrent		177,688	172,395	162,222	167,161	160,635	160,265	160,825	157,455
Deferred Income Tax Liabilities, Net		27,664	26,384	26,080	27,738	13,668	22,765	35,214	37,626
Other Liabilities, Noncurrent		177,233	167,982	171,962	164,928	153,122	149,688	154,765	148,303
Liabilities		2,452,873	2,483,838	2,378,234	2,232,993	2,273,956	2,285,861	2,280,738	2,171,949
Additional Paid in Capital		769,935	750,119	777,060	784,509	726,656	702,272	673,261	608,270
Retained earnings		2,810,050	2,759,484	2,712,875	2,668,723	2,634,633	2,587,222	2,536,172	2,496,979
Treasury Stock, Value		(1,205,305)	(1,204,032)	(1,141,242)	(1,082,240)	(1,073,027)	(1,071,558)	(1,065,654)	(1,057,938)
Stock Employee Compensation Trust		(173,214)	(162,945)	(186,219)	(194,049)	(167,757)	(153,295)	(146,373)	(114,769)
Common Stock Issued, Employee Stock Trust		(147,042)	(141,490)	(156,865)	(163,821)	(140,449)	(129,709)	(119,869)	(93,126)
Accumulated other comprehensive loss		(162,003)	(216,999)	(242,111)	(203,769)	(237,544)	(232,953)	(221,600)	(254,609)
Total Moog shareholders' equity		1,943,701	1,835,417	1,814,778	1,860,633	1,793,792	1,753,259	1,707,217	1,636,087
Liabilities and Equity		4,396,574	4,319,255	4,193,012	4,093,626	4,067,748	4,039,120	3,987,955	3,808,036
Previously Reported | Class A Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock		43,864	43,852	43,844	43,835	43,835	43,826	43,826	43,822
Previously Reported | Class B Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock		7,416	7,428	7,436	7,445	7,445	7,454	7,454	7,458
Revision of Prior Period, Error Correction, Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cash and cash equivalents		0	0	0	0	0	0	0	0
Restricted cash		0	0	0	0	0	0	0	0
Receivables, net		0	0	0	0	0	0	0	12,700
Unbilled receivables		(15,974)	(14,193)	(13,375)	(18,442)	(20,765)	(20,788)	(17,064)	(71,814)
Inventory, Net		0	(1,330)	(1,260)	(1,161)	(2,859)	(2,631)	(4,372)	(5,513)
Prepaid expenses and other current assets		0	0	0	1,500	2,515	2,746	0	13,400
Assets, Current		(15,974)	(15,523)	(14,635)	(18,103)	(21,109)	(20,673)	(21,436)	(51,227)
Property, Plant and Equipment, Net		0	0	0	(769)	18,697	16,742	13,780	11,564
Operating lease right-of-use assets		0	0	0	0	0	0	0	0
Goodwill		0	0	0	0	0	0	0	0
Intangible Assets, Net (Excluding Goodwill)		0	0	0	0	0	0	0	0
Deferred income taxes		3,420	3,323	3,471	2,893	15,051	6,493	(34)	(26)
Other Assets, Noncurrent		0	0	0	0	0	0	0	0
Assets		(12,554)	(12,200)	(11,164)	(15,979)	12,639	2,562	(7,690)	(39,689)
Accounts Payable, Current		0	900	900	900	900	900	900	900
Accrued compensation		0	0	0	2,900	2,550	2,200	1,850	1,500
Contract advances and progress billings		2,622	868	(390)	2,394	240	354	841	(40,270)
Accrued liabilities and other		15,529	15,457	16,614	8,193	21,191	23,781	14,272	30,044
Liabilities, Current		18,151	17,225	17,124	14,387	24,881	27,235	17,863	(7,826)
Long-term debt, excluding current installments		0	0	0	0	0	0	0	0
Liability, Defined Benefit Plan, Noncurrent		0	0	0	0	0	0	0	0
Deferred Income Tax Liabilities, Net		(50)	(48)	(44)	(86)	10,951	1,781	(3,128)	(4,151)
Other Liabilities, Noncurrent		0	0	0	1,536	9,040	8,525	7,051	6,618
Liabilities		18,101	17,177	17,080	15,837	44,872	37,541	21,786	(5,359)
Additional Paid in Capital		0	0	0	0	0	0	0	0
Retained earnings		(30,725)	(29,504)	(28,360)	(32,773)	(32,262)	(35,013)	(29,516)	(34,339)
Treasury Stock, Value		0	0	0	0	0	0	0	0
Stock Employee Compensation Trust		0	0	0	0	0	0	0	0
Common Stock Issued, Employee Stock Trust		0	0	0	0	0	0	0	0
Accumulated other comprehensive loss		70	127	116	957	29	34	40	9
Total Moog shareholders' equity		(30,655)	(29,377)	(28,244)	(31,816)	(32,233)	(34,979)	(29,476)	(34,330)
Liabilities and Equity		(12,554)	(12,200)	(11,164)	(15,979)	12,639	2,562	(7,690)	(39,689)
Revision of Prior Period, Error Correction, Adjustment | Class A Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock		0	0	0	0	0	0	0	0
Revision of Prior Period, Error Correction, Adjustment | Class B Common Stock
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Common stock		$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0