v3.26.1
ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 27, 2026
Dec. 26, 2025
Mar. 28, 2025
Dec. 27, 2024
Mar. 27, 2026
Mar. 28, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]            
Balance at beginning of period $ 1,405,270 $ 1,398,341 $ 1,507,348 $ 1,539,900 $ 1,398,341 $ 1,539,900
Other comprehensive income/loss before reclassifications (2,058)   6,666   687 (10,866)
Amounts reclassified from accumulated other comprehensive income/loss, net of tax 49   41   97 83
Total other comprehensive (loss) income (2,009) 2,793 6,707 (17,490) 784 (10,783)
Balance at end of period 1,280,897 1,405,270 1,410,420 1,507,348 1,280,897 1,410,420
Accumulated Other Comprehensive Loss            
AOCI Attributable to Parent, Net of Tax [Roll Forward]            
Balance at beginning of period (15,195) (17,988) (36,584) (19,094) (17,988) (19,094)
Total other comprehensive (loss) income (2,009) 2,793 6,707 (17,490)    
Balance at end of period (17,204) (15,195) (29,877) (36,584) (17,204) (29,877)
Defined Benefit Pension Items            
AOCI Attributable to Parent, Net of Tax [Roll Forward]            
Balance at beginning of period (10,366) (10,414) (10,366) (10,408) (10,414) (10,408)
Other comprehensive income/loss before reclassifications 0   0   0 0
Amounts reclassified from accumulated other comprehensive income/loss, net of tax 49   41   97 83
Total other comprehensive (loss) income 49   41   97 83
Balance at end of period (10,317) (10,366) (10,325) (10,366) (10,317) (10,325)
Currency Translation Adjustments            
AOCI Attributable to Parent, Net of Tax [Roll Forward]            
Balance at beginning of period (4,829) (7,574) (26,218) (8,686) (7,574) (8,686)
Other comprehensive income/loss before reclassifications (2,058)   6,666   687 (10,866)
Amounts reclassified from accumulated other comprehensive income/loss, net of tax 0   0   0 0
Total other comprehensive (loss) income (2,058)   6,666   687 (10,866)
Balance at end of period $ (6,887) $ (4,829) $ (19,552) $ (26,218) $ (6,887) $ (19,552)