Revision of Previously Issued Consolidated Financial Statements(Statement of Comprehensive Income)(Details) - USD ($) $ 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 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
Foreign currency translation adjustment	53,323	22,999	(41,596)	(6,655)	(13,732)	31,044	(18,597)	17,312	34,726	10,657	20,908	44,955	41,547
Retirement liability adjustment	1,112	1,724	2,151	2,059	2,173	1,678	3,875	3,851	4,987	5,910	23,978	6,315	11,626
Change in accumulated gain (loss) on derivatives	504	400	262	0	200	318	662	518	1,166	518	207	518	3,269
Other Comprehensive Income (Loss), Net of Tax	54,939	25,123	(39,183)	(4,596)	(11,359)	33,040	(14,060)	21,681	40,879	17,085	45,093	51,788	56,442
Comprehensive income (loss) attributable to Moog	113,425	79,733	18,343	54,515	43,147	85,675	98,076	128,822	211,501	183,337	$ 280,121	260,574	231,598
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
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
Foreign currency translation adjustment	53,380	22,988	(41,696)	(6,650)	(13,726)	31,013	(18,708)	17,287	34,672	10,637		44,948	41,538
Retirement liability adjustment	1,112	1,724	3,092	2,059	2,173	1,678	4,816	3,851	5,928	5,910		5,374	11,626
Change in accumulated gain (loss) on derivatives	504	400	262	0	200	318	662	518	1,166	518		518	3,269
Other Comprehensive Income (Loss), Net of Tax	54,996	25,112	(38,342)	(4,591)	(11,353)	33,009	(13,230)	21,656	41,766	17,065		50,840	56,433
Comprehensive income (loss) attributable to Moog	114,703	80,866	14,771	51,769	48,650	80,821	95,637	129,471	210,340	181,240		258,060	227,431
Revision of Prior Period, Error Correction, Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
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
Foreign currency translation adjustment	(57)	11	100	(5)	(6)	31	111	25	54	20		7	9
Retirement liability adjustment	0	0	(941)	0	0	0	(941)	0	(941)	0		941	0
Change in accumulated gain (loss) on derivatives	0	0	0	0	0	0	0	0	0	0		0	0
Other Comprehensive Income (Loss), Net of Tax	(57)	11	(841)	(5)	(6)	31	(830)	25	(887)	20		948	9
Comprehensive income (loss) attributable to Moog	$ (1,278)	$ (1,133)	$ 3,572	$ 2,746	$ (5,503)	$ 4,854	$ 2,439	$ (649)	$ 1,161	$ 2,097		$ 2,514	$ 4,167