v3.25.1
Segment Reporting - Company's Revenue by Geographic Region Based on Bill-to Location (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Revenue from External Customer [Line Items]    
Total revenue $ 85,872 $ 54,473
Taiwan [Member]    
Revenue from External Customer [Line Items]    
Total revenue 53,899 33,685
Asia Pacific other than Taiwan [Member]    
Revenue from External Customer [Line Items]    
Total revenue 16,559 12,750
Europe [Member]    
Revenue from External Customer [Line Items]    
Total revenue 8,739 4,199
North America other than United States [Member]    
Revenue from External Customer [Line Items]    
Total revenue 5,145 2,770
United States [Member]    
Revenue from External Customer [Line Items]    
Total revenue $ 1,530 $ 1,069