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SIGNIFICANT CUSTOMERS AND GEOGRAPHIC NET REVENUES Geographic Net Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue by Geography
Total net revenues	$ 176,776	$ 121,129	$ 530,623	$ 337,625
United States of America
Revenue by Geography
Total net revenues	5,054	2,380	12,973	8,028
Hong Kong/China
Revenue by Geography
Total net revenues	103,937	76,549	344,790	202,642
Taiwan
Revenue by Geography
Total net revenues	7,629	4,133	20,432	17,811
Korea
Revenue by Geography
Total net revenues	17,508	12,121	43,702	29,762
Western Europe (excluding Germany)
Revenue by Geography
Total net revenues	11,418	7,535	27,268	25,565
Japan
Revenue by Geography
Total net revenues	6,959	4,303	16,758	12,606
Germany
Revenue by Geography
Total net revenues	9,402	5,755	24,064	17,169
Other
Revenue by Geography
Total net revenues	$ 14,869	$ 8,353	$ 40,636	$ 24,042

X

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