BANK BORROWINGS - Narrative (Details) $ in Thousands, ¥ in Millions		3 Months Ended		9 Months Ended
	Sep. 27, 2022 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 27, 2022 CNY (¥)
Debt Instrument [Line Items]
Interest costs capitalized		$ 231	$ 65	$ 755	$ 65
Interest expense, debt		$ 364	$ 443	$ 1,225	$ 949
Minimum
Debt Instrument [Line Items]
Long-term debt, percentage bearing variable interest, percentage rate		2.90%		2.90%
Maximum
Debt Instrument [Line Items]
Long-term debt, term		12 months		12 months
Long-term debt, percentage bearing variable interest, percentage rate		4.85%		4.85%
2022 Facility Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 111,483					¥ 800
Debt instrument, basis spread on variable rate	1.15%
Long-term line of credit		$ 56,136		$ 56,136