Consolidated Statements Of Earnings - 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
Income Statement [Abstract]
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
Restructuring	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 taxes	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 per share
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
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
Weighted average common shares outstanding
Basic											31,680,280	31,954,689	31,831,687
Diluted											32,082,601	32,359,338	32,044,226

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.