Debt and Financing Arrangements - Interest Expense (Details) - Convertible Senior Notes - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Debt Instrument [Line Items]
Contractual interest expense	$ 1,687	$ 1,540
Amortization of debt issuance costs	677	608
Total interest expense related to the Notes	$ 2,364	$ 2,148

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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