ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Changes in AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 27, 2024	Dec. 29, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 463,424
Other comprehensive income (loss) before reclassifications	(4,916)	$ 3,197
Amounts reclassified from accumulated other comprehensive income	11	10
Tax effects	(2)	(39)
Balance, end of period	440,284	503,870
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	5,964	3,323
Balance, end of period	1,057	6,491
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	6,056	3,581
Other comprehensive income (loss) before reclassifications	(4,915)	3,059
Amounts reclassified from accumulated other comprehensive income	0	0
Tax effects	0	0
Balance, end of period	1,141	6,640
Unrealized gain (loss) on available-for sale securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	17	(121)
Other comprehensive income (loss) before reclassifications	(1)	138
Amounts reclassified from accumulated other comprehensive income	0
Tax effects	0	(36)
Balance, end of period	16	(19)
Unamortized Loss on Defined Benefit Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(109)	(137)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	11	10
Tax effects	(2)	(3)
Balance, end of period	$ (100)	$ (130)