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Cash Equivalents and Investments - Narrative (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jul. 31, 2022 | Jan. 31, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position |  |
Contractual maturities of available-for-sale debt securities, maximum | 36 months |
Prepaid Expenses and Other Current Assets |  |
Debt Securities, Available-for-sale, Unrealized Loss Position |  |
Interest receivable, current | $ 14.2 | $ 14.1

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- Definition Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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