Revision of Previously Issued Consolidated Financial Statements (Statement of Earnings)(Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Jun. 28, 2025	Mar. 29, 2025	Dec. 28, 2024	Jun. 29, 2024	Mar. 30, 2024	Dec. 30, 2023	Mar. 29, 2025	Mar. 30, 2024	Jun. 28, 2025	Jun. 29, 2024	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	$ 969,582	$ 934,022	$ 907,882	$ 914,135	$ 920,208	$ 855,222	$ 1,841,904	$ 1,775,430	$ 2,811,486	$ 2,689,565	$ 3,860,624	$ 3,608,960	$ 3,316,190
Cost of sales	696,913	675,255	662,804	656,874	661,199	613,792	1,338,059	1,274,991	2,034,972	1,931,865	2,794,802	2,589,525	2,414,090
Inventory write-down	5,839	2,149	0	1,600	175	0	2,149	175	7,988	1,775	8,474	7,027	4,345
Gross profit	266,830	256,618	245,078	255,661	258,834	241,430	501,696	500,264	768,526	755,925	1,057,348	1,012,408	897,755
Research and development	21,906	24,481	23,605	27,791	28,382	30,579	48,086	58,961	69,992	86,752	93,671	112,773	106,551
Selling, general and administrative	139,748	133,932	128,137	128,190	125,928	120,758	262,069	246,686	401,817	374,876	553,968	501,253	474,937
Interest	17,790	19,548	16,248	17,029	16,757	15,147	35,796	31,904	53,586	48,933	72,075	66,330	59,838
Asset Impairment Charges	3,000			112	6,750			6,750	3,000	6,862	5,374	22,149	14,628
Charged to expense	2,850	2,425	3,784	3,984	6,750	1,889	6,209	8,639	9,059	12,623	10,015	23,788	7,997
Loss on sale of businesses											0	0	900
Gain on sale of buildings											0	(979)	(10,030)
Pension settlement											0	0	12,542
Other	5,183	4,174	(1,131)	4,042	2,700	4,157	3,043	6,857	8,226	10,899	9,597	17,348	8,872
Earnings before income taxes	76,353	72,058	74,435	74,513	71,567	68,900	146,493	140,467	222,846	214,980	312,648	269,746	221,520
Income Tax Expense (Benefit)	17,867	17,448	16,909	15,402	17,061	16,265	34,357	33,326	52,224	48,728	77,620	60,960	46,364
Net earnings	$ 58,486	$ 54,610	$ 57,526	$ 59,111	$ 54,506	$ 52,635	$ 112,136	$ 107,141	$ 170,622	$ 166,252	$ 235,028	$ 208,786	$ 175,156
Net earnings (loss) per share attributable to Moog, Basic	$ 1.86	$ 1.73	$ 1.80	$ 1.85	$ 1.71	$ 1.65	$ 3.53	$ 3.35	$ 5.38	$ 5.20	$ 7.42	$ 6.53	$ 5.50
Net earnings (loss) per share attributable to Moog, Diluted	$ 1.83	$ 1.71	$ 1.78	$ 1.82	$ 1.69	$ 1.63	$ 3.48	$ 3.32	$ 5.32	$ 5.14	$ 7.33	$ 6.45	$ 5.47
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	$ 971,363	$ 934,840	$ 910,315	$ 904,735	$ 930,303	$ 856,850	$ 1,845,155	$ 1,787,153	$ 2,816,518	$ 2,691,888		$ 3,609,160	$ 3,319,122
Cost of sales	699,685	676,648	668,040	651,672	663,350	623,651	1,344,688	1,287,001	2,044,373	1,938,673		2,605,214	2,423,245
Inventory write-down	5,839	2,149	0	1,600	175	0	2,149	175	7,988	1,775		7,027	4,345
Gross profit	265,839	256,043	242,275	251,463	266,778	233,199	498,318	499,977	764,157	751,440		996,919	891,532
Research and development	21,906	24,481	23,605	27,791	28,382	30,579	48,086	58,961	69,992	86,752		112,773	106,551
Selling, general and administrative	138,801	133,102	127,781	126,361	124,961	118,725	260,883	243,686	399,684	370,047		494,887	469,836
Interest	17,790	19,548	17,002	18,153	18,003	16,694	36,550	34,697	54,340	52,850		62,112	63,578
Asset Impairment Charges	3,000			112	6,750			6,750	3,000	6,862		22,149	14,628
Charged to expense	2,850	2,425	3,784	3,984	6,750	1,889	6,209	8,639	9,059	12,623		23,788	7,997
Loss on sale of businesses													900
Gain on sale of buildings												(979)	(10,030)
Pension settlement													12,542
Other	3,510	2,908	1,524	4,157	3,183	2,701	4,432	5,884	7,942	10,041		14,376	9,478
Earnings before income taxes	77,982	73,579	68,579	70,905	78,749	62,611	142,158	141,360	220,140	212,265		267,813	216,052
Income Tax Expense (Benefit)	18,275	17,825	15,466	14,545	18,746	14,799	33,291	33,545	51,566	48,090		60,593	45,054
Net earnings	$ 59,707	$ 55,754	$ 53,113	$ 56,360	$ 60,003	$ 47,812	$ 108,867	$ 107,815	$ 168,574	$ 164,175		$ 207,220	$ 170,998
Net earnings (loss) per share attributable to Moog, Basic	$ 1.89	$ 1.77	$ 1.66	$ 1.76	$ 1.88	$ 1.50	$ 3.43	$ 3.38	$ 5.32	$ 5.14		$ 6.48	$ 5.37
Net earnings (loss) per share attributable to Moog, Diluted	$ 1.87	$ 1.75	$ 1.64	$ 1.74	$ 1.86	$ 1.48	$ 3.38	$ 3.34	$ 5.25	$ 5.08		$ 6.40	$ 5.34
Revision of Prior Period, Error Correction, Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net sales	$ (1,781)	$ (818)	$ (2,433)	$ 9,400	$ (10,095)	$ (1,628)	$ (3,251)	$ (11,723)	$ (5,032)	$ (2,323)		$ (200)	$ (2,932)
Cost of sales	(2,772)	(1,393)	(5,236)	5,202	(2,151)	(9,859)	(6,629)	(12,010)	(9,401)	(6,808)		(15,689)	(9,155)
Inventory write-down	0	0	0	0	0	0	0	0	0	0		0	0
Gross profit	991	575	2,803	4,198	(7,944)	8,231	3,378	287	4,369	4,485		15,489	6,223
Research and development	0	0	0	0	0	0	0	0	0	0		0	0
Selling, general and administrative	947	830	356	1,829	967	2,033	1,186	3,000	2,133	4,829		6,366	5,101
Interest	0	0	(754)	(1,124)	(1,246)	(1,547)	(754)	(2,793)	(754)	(3,917)		4,218	(3,740)
Asset Impairment Charges	0			0	0			0	0	0		0	0
Charged to expense	0	0	0	0	0	0	0	0	0	0		0	0
Loss on sale of businesses													0
Gain on sale of buildings												0	0
Pension settlement													0
Other	1,673	1,266	(2,655)	(115)	(483)	1,456	(1,389)	973	284	858		2,972	(606)
Earnings before income taxes	(1,629)	(1,521)	5,856	3,608	(7,182)	6,289	4,335	(893)	2,706	2,715		1,933	5,468
Income Tax Expense (Benefit)	(408)	(377)	1,443	857	(1,685)	1,466	1,066	(219)	658	638		367	1,310
Net earnings	$ (1,221)	$ (1,144)	$ 4,413	$ 2,751	$ (5,497)	$ 4,823	$ 3,269	$ (674)	$ 2,048	$ 2,077		$ 1,566	$ 4,158
Net earnings (loss) per share attributable to Moog, Basic	$ (0.04)	$ (0.04)	$ 0.14	$ 0.09	$ (0.17)	$ 0.15	$ 0.10	$ (0.02)	$ 0.06	$ 0.07		$ 0.05	$ 0.13
Net earnings (loss) per share attributable to Moog, Diluted	$ (0.04)	$ (0.04)	$ 0.14	$ 0.08	$ (0.17)	$ 0.15	$ 0.10	$ (0.02)	$ 0.06	$ 0.06		$ 0.05	$ 0.13