BUSINESS SEGMENTS (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2024	Oct. 03, 2025	Sep. 27, 2024	Sep. 29, 2023
Revenue from External Customer [Line Items]
Revenue		$ 2,734,839	$ 2,805,820	$ 2,825,286
Cost of services provided (exclusive of depreciation and amortization)		2,010,082	1,989,872	1,970,215
Depreciation and amortization		143,017	140,781	136,504
Selling, general and administrative expenses		517,309	517,216	500,658
Operating Income		64,431	157,951	217,909
Gain (Loss) on Sale of Equity Investments, net	$ (2,200)	(2,784)	0	51,831
Interest Expense, Net		(92,264)	(126,563)	(2,109)
Other (Expense) Income, net		(13,689)	642	2,099
(Loss) Income Before Income Taxes		(44,306)	32,030	269,730
Capital expenditures		58,460	78,905	77,870
Property, plant and equipment		663,462	670,858
Total assets		2,906,900	2,932,387
United States
Revenue from External Customer [Line Items]
Capital expenditures		54,563	75,112	72,353
Canada
Revenue from External Customer [Line Items]
Capital expenditures		3,897	3,793	5,517
Operating Segments
Revenue from External Customer [Line Items]
Revenue		2,734,839	2,805,820	2,825,286
Cost of services provided (exclusive of depreciation and amortization)		2,010,082	1,989,872	1,970,215
Depreciation and amortization		141,413	140,532	135,986
Selling, general and administrative expenses		420,379	402,545	401,616
Operating Income		162,965	272,871	317,469
Property, plant and equipment		647,880	648,198
Total assets		2,869,358	2,898,257
Operating Segments | United States
Revenue from External Customer [Line Items]
Revenue		2,489,376	2,555,922	2,575,352
Cost of services provided (exclusive of depreciation and amortization)		1,831,811	1,811,089	1,797,371
Depreciation and amortization		131,362	129,201	125,167
Selling, general and administrative expenses		372,192	350,923	349,052
Operating Income		154,011	264,709	303,762
Property, plant and equipment		573,709	580,060
Total assets		2,605,553	2,629,457
Operating Segments | Canada
Revenue from External Customer [Line Items]
Revenue		245,463	249,898	249,934
Cost of services provided (exclusive of depreciation and amortization)		178,271	178,783	172,844
Depreciation and amortization		10,051	11,331	10,819
Selling, general and administrative expenses		48,187	51,622	52,564
Operating Income		8,954	8,162	13,707
Property, plant and equipment		74,171	68,138
Total assets		263,805	268,800
Corporate and other
Revenue from External Customer [Line Items]
Operating Income		(98,534)	(114,920)	$ (99,560)
Property, plant and equipment		15,582	22,660
Total assets		$ 37,542	$ 34,130