Description of the Business and Significant Accounting Policies New Accounting Pronouncements (Tables)

9 Months Ended

Oct. 31, 2020

Accounting Policies [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

Recently Adopted Accounting Standards

Standard	Description	Effective Date	Effect on the Condensed Consolidated Financial Statements (or Other Significant Matters)
Accounting Standards Update (“ASU”) No. 2019-12, Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes	The amendments in this ASU simplify the accounting for incomes taxes by removing certain exceptions to the general principles in Topic 740 and clarifying and amending existing guidance to improve consistent application. Most amendments within this standard are required to be applied on a prospective basis, while certain amendments must be applied on a retrospective or modified retrospective basis.	We adopted this standard as of August 1, 2020.	The adoption of this new standard did not have a material impact on our condensed consolidated financial statements.
ASU No. 2016-13 (Topic 326), Financial Instruments - Credit Losses	The amendments in this update require a financial asset (or a group of financial assets) measured at an amortized cost basis to be presented at the net amount expected to be collected. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans and available-for-sale securities.	We adopted this new standard as of February 1, 2020, using the modified prospective method recognized as of the date of initial application. Under this method, we are not required to restate or disclose the effects of applying Topic 326 for comparative periods.	The adoption of this new standard did not have a material impact on our condensed consolidated financial statements. Under the new standard, we assess credit losses on accounts receivable by taking into consideration past collection experience, credit quality of the customer, age of the receivable balance, current economic conditions, and forecasts that affect the collectability of the reported amount. With respect to available-for-sale debt securities, when the fair value of a security is below its amortized cost, the amortized cost will be written down to its fair value if it is more likely than not that management is required to sell the impaired security before recovery of its amortized basis, or management has the intention to sell the security. If neither of these conditions are met, we determine whether the impairment is due to credit losses by comparing the present value of the expected cash flows of the security with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in Other income (expense), net on our condensed consolidated statements of operations. Non-credit related impairment losses are reported as a separate component on our consolidated statements of comprehensive income (loss).

Recently Issued Accounting Pronouncements

Standard	Description	Effective Date	Effect on the Condensed Consolidated Financial Statements (or Other Significant Matters)
ASU No. 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815 - 40)	This ASU amends the guidance on convertible instruments and the derivatives scope exception for contracts in an entity's own equity, which reduces the number of accounting models for convertible debt instruments and convertible preferred stock. Convertible instruments will no longer have to be separated into debt and equity components. Convertible debt instruments will be reported as a single liability and convertible preferred stock will be reported as a single equity instrument. Similarly, the embedded conversion feature will no longer be amortized as interest expense over the life of the instrument. Instead, a convertible debt instrument will be accounted for wholly as debt unless 1) a convertible instrument contains features that require bifurcation as a derivative, or 2) a convertible debt instrument was issued at a substantive premium. Among other potential impacts, this ASU is expected to reduce reported interest expense, decrease reported net loss, and result in a reclassification of certain conversion feature balance sheet amounts from stockholder’s equity to liabilities as it relates to the convertible senior notes. This ASU also amends the related EPS guidance for both Subtopics and is part of the FASB's simplification initiative, which aims to reduce unnecessary complexity in U.S. GAAP.	First quarter of fiscal 2023. Early adoption is permitted beginning in fiscal 2022.	We are currently evaluating the impact of this standard on our condensed consolidated financial statements.