Description of Business and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The Company's unaudited condensed consolidated financial statements and accompanying notes reflect all adjustments (all of which are normal, recurring in nature and those discussed in these notes) that are, in the opinion of management, necessary for a fair presentation of the interim periods presented. All intercompany balances and transactions have been eliminated in consolidation. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for any subsequent quarter or for the entire year ending December 31, 2022. Certain information and note disclosures normally included in annual consolidated financial statements prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) have been condensed or omitted under the rules and regulations of the Securities and Exchange Commission (“SEC”).
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. The significant estimates made by management affect revenues, the allowance for doubtful accounts, valuation of long-term investments, deferred and prepaid sales commission costs, goodwill, useful lives of intangible assets, share-based compensation, capitalization of internally developed software, liability and equity allocation of convertible senior notes, return reserves, provision for income taxes, uncertain tax positions, loss contingencies, sales tax liabilities and accrued liabilities. Management periodically evaluates these estimates and will make adjustments prospectively based upon the results of such periodic evaluations. Actual results may differ from these estimates. In particular, the Company evaluates its deferred and prepaid sales commission balances for possible recoverability whenever events or circumstances indicate that the carrying amount of such assets may not be recoverable, and as a result of the uncertainty regarding Avaya’s financial condition, the Company performed a recoverability assessment based on the facts and circumstances known to date. There can be no assurances that the Company’s current estimates are accurate or will not subsequently need to be revised as additional information regarding Avaya’s financial status and condition is made publicly available. Refer to Note 3, Financial Statement Components in this Quarterly Report on Form 10-Q for further information regarding our assessment of the recoverability of our deferred and prepaid sales commission balances with Avaya.
Segment Information	Segment Information The Company has determined that the chief executive officer is the chief operating decision maker. The Company’s chief executive officer reviews financial information presented on a consolidated basis for purposes of assessing performance and making decisions on how to allocate resources. Accordingly, the Company has determined that it operates in a single reportable segment.
Concentrations	Concentrations As of September 30, 2022 and December 31, 2021, none of the Company’s customers accounted for more than 10% of the Company’s total accounts receivable. Long-lived assets by geographic location are based on the location of the legal entity that owns the asset. As of September 30, 2022 and December 31, 2021, approximately 95% of the Company’s consolidated long-lived assets were located in the U.S. No other single country outside of the U.S. represented more than 10% of the Company’s consolidated long-lived assets.
Recent Accounting Pronouncements Not Yet Adopted and Recently Adopted Accounting Pronouncements	Recent Accounting Pronouncements Not Yet Adopted In March 2020, the FASB issued optional guidance for a limited time to ease the potential burden in accounting for or recognizing the effects of reference rate reform, particularly, the risk of cessation of the London Interbank Offered Rate (“LIBOR”) on financial reporting. The guidance provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments are elective and are effective upon issuance for all entities through December 31, 2022. The amendments in this ASU are not expected to have a material impact on the Company's consolidated financial statements. Recently Adopted Accounting Pronouncements In August 2020, the FASB issued ASU No. 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. This update simplifies the accounting for convertible instruments by eliminating the conversion option separation model for convertible debt that can be settled in cash. Consequently, a convertible debt instrument will be accounted for as a single liability measured at its amortized cost, as long as no other features require bifurcation and recognition as derivatives. This update also eliminates the treasury stock method and instead requires entities to calculate the impact of convertible instruments on diluted earnings per share when the instruments may be settled in cash or shares. The required use of the if-converted method did not impact the diluted net loss per share as the Company was in a net loss position. The Company adopted this update, effective January 1, 2022, using the modified retrospective method. Upon adoption, the Company is no longer recording the conversion feature of its convertible senior notes in equity. Instead, the Company combined the previously separated equity component with the liability component, which together is now classified as debt, thereby eliminating the subsequent amortization of the debt discount as interest expense. Similarly, the portion of issuance costs previously allocated to equity was reclassified to debt and amortized as interest expense. Accordingly, the Company recorded a decrease to accumulated deficit of approximately $93.8 million, a decrease to additional paid-in capital of $329.3 million, and an increase to convertible senior notes, net of approximately $235.5 million. Prior period financial statements were not restated.