SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Significant Accounting Policies [Line Items]
Revenue	$ 91,339	$ 83,675	$ 207,830	$ 165,026
Asia & Pacific
Significant Accounting Policies [Line Items]
Revenue	47,658	35,653	97,709	86,139
China
Significant Accounting Policies [Line Items]
Revenue	34,843	33,282	78,969	60,474
Other Asia & Pacific countries
Significant Accounting Policies [Line Items]
Revenue	12,815	2,371	18,740	25,665
Europe
Significant Accounting Policies [Line Items]
Revenue	38,885	46,745	98,935	75,666
U.S.
Significant Accounting Policies [Line Items]
Revenue	$ 4,796	$ 1,277	$ 11,186	$ 3,221

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details