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Segment Reporting (Tables)
 9 Months Ended
Oct. 31, 2020
Segment Reporting [Abstract]  
Company's Revenue by Geographic Region Based on Bill-to Location

The following table sets forth the Company’s revenue by geographic region based on bill-to location for the periods indicated:

 

 

 

Three Months Ended October 31,

 

 

Nine Months Ended October 31,

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

 

 

(in thousands)

 

Taiwan

 

$

35,073

 

 

$

42,986

 

 

$

96,846

 

 

$

101,567

 

Asia Pacific

 

 

14,642

 

 

 

18,011

 

 

 

43,635

 

 

 

49,745

 

Europe

 

 

1,970

 

 

 

2,264

 

 

 

6,856

 

 

 

9,848

 

North America other than United States

 

 

2,433

 

 

 

2,804

 

 

 

8,449

 

 

 

6,688

 

United States

 

 

1,972

 

 

 

1,857

 

 

 

5,062

 

 

 

3,672

 

Total revenue

 

$

56,090

 

 

$

67,922

 

 

$

160,848

 

 

$

171,520