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REVENUE FROM CONTRACTS WITH CUSTOMERS
 12 Months Ended
Dec. 31, 2025
Revenue from Contract with Customer [Abstract]  
REVENUE FROM CONTRACTS WITH CUSTOMERS REVENUE FROM CONTRACTS WITH CUSTOMERS
The Company assesses revenues based upon the nature or type of goods or services it provides and the geographic location of the customer facility. The following tables present disaggregated revenue information:
Year Ended December 31,
202520242023
Single Wafer Cleaning, Tahoe and Semi-Critical Cleaning Equipment$625,964 $578,887 $403,851 
ECP (front-end and packaging), Furnace and Other Technologies199,551 151,057 103,356 
Advanced Packaging (excluding ECP), Services & Spares75,794 52,174 50,516 
Total revenue by product category$901,309 $782,118 $557,723 

For the years ended December 31, 2025 and 2024, substantially all revenue was derived from customers in mainland China, and therefore, no geographical segment information is presented.

Contract liabilities balances were as follows as of:
December 31
20252024
Advances from customers$187,809 $243,949 
Deferred revenue17,388 8,537 
Total contract liabilities$205,197 $252,486 

During the year ended December 31, 2025, advances from customers decreased by $56,140 primarily due to more revenue recognized upon acceptance of first tools by customers than the payments made by customers for first tools.

Below are revenues recognized from amounts included in contract liabilities at the beginning of the year:
Year Ended December 31,
202520242023
Revenue recognized from amounts included in contract liabilities at the beginning of the year$153,858 $124,069 $124,069 $97,370