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Fair Value Measurements - Schedule of Contractual Maturities (Details) - USD ($)
$ in Thousands
Jan. 31, 2026
Jan. 31, 2025
Amortized Cost    
Due within one year $ 93,542  
Due within one to three years 139,527  
Total 233,069  
Estimated Fair Value    
Due within one year 93,768  
Due within one to three years 140,442  
Total $ 234,210 $ 282,156