v3.26.1
BUSINESS SEGMENTS (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Jul. 03, 2026
USD ($)
Jun. 27, 2025
USD ($)
Jul. 03, 2026
USD ($)
segment
Jun. 27, 2025
USD ($)
Oct. 03, 2025
USD ($)
Segment Reporting [Abstract]          
Number of operating segments | segment     2    
Number of reportable segments | segment     2    
Segment Reporting [Line Items]          
Revenue $ 661,663 $ 673,799 $ 1,984,488 $ 2,022,828  
Cost of services provided (exclusive of depreciation and amortization) 476,269 491,681 1,454,238 1,476,932  
Depreciation and amortization 33,272 34,856 102,181 107,674  
Selling, general and administrative expenses 114,874 122,301 347,464 391,432  
Operating Income (Loss) 37,248 24,961 80,605 46,790  
Gain (Loss) on Sale of Equity Investments, net 0 0 0 (2,150)  
Interest Expense, net (20,118) (22,495) (63,374) (67,921)  
Other (Expense) Income, net (2,786) (3,215) (8,935) (10,120)  
Income (Loss) Before Income Taxes 14,344 (749) 8,296 (33,401)  
Property, plant and equipment 643,509 663,462 643,509 663,462 $ 663,462
Total assets 2,830,498 2,906,900 2,830,498 2,906,900 $ 2,906,900
Operating Segments          
Segment Reporting [Line Items]          
Revenue 661,663 673,799 1,984,488 2,022,828  
Cost of services provided (exclusive of depreciation and amortization) 476,269 491,681 1,454,238 1,476,932  
Depreciation and amortization 32,841 34,434 100,938 106,492  
Selling, general and administrative expenses 94,667 104,483 281,330 315,627  
Operating Income (Loss) 57,886 43,201 147,982 123,777  
Capital expenditures 17,955 14,860 40,031 43,102  
Property, plant and equipment 628,928 647,880 628,928 647,880  
Total assets 2,789,711 2,869,358 2,789,711 2,869,358  
Operating Segments | United States          
Segment Reporting [Line Items]          
Revenue 600,742 613,302 1,802,551 1,841,092  
Cost of services provided (exclusive of depreciation and amortization) 432,300 447,240 1,321,801 1,345,025  
Depreciation and amortization 30,504 31,980 93,767 98,798  
Selling, general and administrative expenses 82,401 93,398 245,458 280,000  
Operating Income (Loss) 55,537 40,684 141,525 117,269  
Capital expenditures 16,971 13,566 37,635 40,462  
Property, plant and equipment 557,529 573,709 557,529 573,709  
Total assets 2,525,755 2,605,553 2,525,755 2,605,553  
Operating Segments | Canada          
Segment Reporting [Line Items]          
Revenue 60,921 60,497 181,937 181,736  
Cost of services provided (exclusive of depreciation and amortization) 43,969 44,441 132,437 131,907  
Depreciation and amortization 2,337 2,454 7,171 7,694  
Selling, general and administrative expenses 12,266 11,085 35,872 35,627  
Operating Income (Loss) 2,349 2,517 6,457 6,508  
Capital expenditures 984 1,294 2,396 2,640  
Property, plant and equipment 71,399 74,171 71,399 74,171  
Total assets 263,956 263,805 263,956 263,805  
Corporate and other          
Segment Reporting [Line Items]          
Operating Income (Loss) (20,638) (18,240) (67,377) (76,987)  
Property, plant and equipment 14,581 15,582 14,581 15,582  
Total assets $ 40,787 $ 37,542 $ 40,787 $ 37,542