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Fair Value Measurements - Schedule of Contractual Maturities (Details) - USD ($)
$ in Thousands
Oct. 31, 2025
Jan. 31, 2025
Amortized Cost    
Due within one year $ 95,246  
Due within one to three years 183,456  
Amortized Cost 278,702  
Estimated Fair Value    
Due within one year 95,423  
Due within one to three years 184,723  
Estimated Fair Value $ 280,146 $ 282,156