v3.26.1
Derivative financial instruments and hedging activities (Tables)
 3 Months Ended
Apr. 30, 2026
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Notional Amounts of Derivative Contracts
The notional amount of the Company's derivative instruments was as follows:
(in thousands, except
number of instruments)		April 30, 2026January 31, 2026
Number of instrumentsNotionalNumber of instrumentsNotional
Treasury bond forwards26$3,495,000 18$2,350,000 
Schedule of Fair Value of Derivative Contracts
The tables below present the fair value of the Company’s derivatives as well as their classification in the condensed consolidated balance sheet.
April 30, 2026
Derivative assetsDerivative liabilities
(in thousands)Other current assetsOther assetsAccrued liabilitiesOther long-term liabilities
Treasury bond forwards$666 $— $(19,387)$(27,161)
January 31, 2026
Derivative assetsDerivative liabilities
(in thousands)Other current assetsOther assetsAccrued liabilitiesOther long-term liabilities
Treasury bond forwards$— $3,285 $(6,935)$(7,997)
Summary of Effect of Derivatives on the Condensed Consolidated Financial Statements
The pre-tax losses on the Company's cash flow hedges recognized in AOCI were as follows:
Three months ended April 30,
(in thousands)20262025
Treasury bond forwards$34,312 $— 
Schedule of Reclassifications from AOCI
Three months ended April 30,
20262025
(in thousands)Custodial revenueIncome tax provisionTotal reclassificationsCustodial revenueIncome tax provisionTotal reclassifications
Treasury bond forwards
Amount of gains reclassified from AOCI$196 $(48)$148 $— $— $—