Segment And Geographic Information (Tables)

12 Months Ended

Dec. 31, 2020

Segment And Geographic Information [Abstract]

Schedule Of Geographic Allocation Of Revenue

	Year Ended December 31,
	2020		2019		2018
Switzerland	$	54,023	$	50,118	$	50,805
Korea		42,011		42,257		31,877
Singapore		41,748		41,626		26,854
France		31,972		34,947		37,565
United States		4,756		6,648		7,253
Other Asia		58,283		58,349		67,695
Other Europe		57,893		63,141		54,677
Other International		3,327		1,767		8,198
Total revenue	$	294,013	$	298,853	$	284,924