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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended
	Apr. 30, 2024 USD ($) segment	Apr. 30, 2023 USD ($)	Jan. 31, 2024 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating segments | segment	1
Accounts receivable	$ 77,536		$ 100,413
Restricted Cash and Investments	3,576	$ 0	3,600
Restricted cash	3,700		3,700
Director
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable	4,000		$ 3,800
Revenues	4,000	3,200
Cash disbursements	$ 0	$ 0

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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