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Summary of significant accounting policies (Policies) | 6 Months Ended
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Jun. 30, 2023
Accounting Policies [Abstract] |
Basis of consolidation and presentation | Basis of consolidation and presentation— The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation, and all other normal and recurring adjustments that are, in the opinion of management, necessary for a fair presentation of the results of the periods presented have been made.
Segment information | Segment information— On March 1, 2023, Greg Brown became the Company’s new Chief Executive Officer and chief operating decision maker (“CODM”). The Company defines its segments as those operations the CODM regularly reviews to allocate resources and assess performance. For the three and six months ended June 30, 2023 and 2022, the Company operated under two operating and reportable segments: Enterprise and Consumer. The Company continually monitors and reviews its segment reporting structure in accordance with Accounting Standards Codification (“ASC”) Topic 280, Segment Reporting, to determine whether any changes have occurred that would impact its reportable segments. For further information on the Com pany’s segment reporting, see Note 13 – Segment and geographic information.
Use of estimates | Use of estimates— The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the condensed consolidated financial statements and the results of operations during the reporting periods. Significant estimates and assumptions reflected in the condensed consolidated financial statements include, but are not limited to, allowance for credit losses, capitalization of internally developed software and ass ociated useful lives, stock-based compensation, determination of the income tax valuation allowance and the potential outcome of uncertain tax positions, estimated instructor withholding tax obligations, estimated service period for consumer single course purchases, the period of benefit for deferred commissions, t he fair value and associated useful lives of intangible assets and goodwill acquired via business combinations, and the valuation of privately-held strategic investments, including impairments. Management periodically evaluates such estimates and assumptions for continued reasonableness. Actual results may ultimately differ from management’s estimates and such differences could be material to the Company’s financial position and results of operations.
Concentration of credit risk | Concentration of credit risk— Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents, marketable securities, restricted cash, and accounts receivable. For cash and restricted cash, the Company is exposed to credit risk in the event of default by the financial institutions to the extent the amounts recorded on the accompanying condensed consolidated balance sheets are in excess of federal insurance limits. The Company’s investments, classified as cash equivalents and marketable securities, consist of high-credit-quality instruments and fixed-income securities.The Company generally does not require collateral or other security in support of accounts receivable. To reduce credit risk, management performs ongoing evaluations of its customers’ financial condition and maintains an allowance based upon expected credit losses of outstanding receivables.
Stock-based compensation | Stock-based compensation— The Company accounts for its stock-based compensation pursuant to ASC Topic 718, Compensation-Stock Compensation. The Company granted performance-based restricted stock units (“PSUs”) in the first quarter of 2023, which vest based on the achievement of predefined corporate performance metrics and are subject to ongoing service conditions. The Company determines the fair value of PSUs based on the fair value of the Company’s common stock on the date of grant. Because PSUs have both performance and service-based vesting conditions, the Company separately attributes stock-based compensation expense for each vesting tranche of the award over their requisite service periods. Management estimates the number of PSUs that are expected to vest based on the anticipated achievement of the specified performance metrics. If the performance-based vesting condition is considered probable of being achieved, the Company recognizes expense over the requisite service period based on the probable outcome of achievement. If the performance goals are not met, or are considered improbable, no compensation cost is recognized, and any previously recognized compensation cost is reversed.
Accounts receivable, net | Accounts receivable, net— Accounts receivable primarily represent amounts owed to the Company for Enterprise subscriptions. Also included in accounts receivable are amounts due from payment processors or mobile application store partners that settle over a period longer than five business days. Accounts receivable balances are recorded at the invoiced amount and are non-interest-bearing. Accounts receivable is presented net of allowance for credit losses in the accompanying condensed consolidated balance sheets. The Company maintains an allowance based upon expected credit losses of outstanding receivables. Management derives its estimate using a variety of factors, including historical collection and loss patterns; the current aging of receivables; geographic and other customer-specific credit risk factors; and reasonable and supportable forecasts of future economic conditions which inform adjustments to historical loss patterns. The provision for expected credit losses is recorded in general and administrative expenses in the accompanying condensed consolidated statements of operations. Accounts receivable deemed to be uncollectible are written off, net of expected or actual recoveries.
Self-insurance | Self-insurance— Beginning in 2023, the Company became self-insured for medical benefits offered to certain employees, up to certain stop-loss limits. Such costs are accrued based on known claims and estimates of incurred but not reported (“IBNR”) claims. IBNR claims are estimated using historical claim information and actuarial estimates
Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted There are no recently issued accounting pronouncements that are expected to have a material impact on the Company’s condensed consolidated financial statements.

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