Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]
Fiscal Year	Fiscal Year The Company’s fiscal year ends on December 31. For example, references to fiscal year 2023 and 2022 refer to the fiscal year ending December 31, 2023 and December 31, 2022, respectively.
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”), and applicable rules and regulations of the Securities and Exchange Commission (“SEC”), regarding interim financial reporting. Accordingly, they do not include all disclosures normally required in annual consolidated financial statements prepared in accordance with U.S. GAAP. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 28, 2023. In the Company’s opinion, the information contained herein reflects all adjustments necessary for a fair presentation of the Company’s results of operations, financial position, cash flows, and stockholders’ equity. All such adjustments are of a normal, recurring nature. The results of operations for the three and six months ended June 30, 2023 shown in this report are not necessarily indicative of the results to be expected for the full year ending December 31, 2023 or any other interim period. For a discussion of the Company’s significant accounting policies, refer to the headers “Developer Exchange Fees Expense” and “Short-Term and Long-Term Investments” below, as well as the significant accounting policies as described in the Company’s consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 28, 2023.
Principles of Consolidation	Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and subsidiaries over which the Company has control. All intercompany transactions and balances have been eliminated. The condensed consolidated financial statements include 100% of the accounts of wholly owned and majority owned subsidiaries, and the ownership interest of minority investors is recorded as noncontrolling interest.
Use of Estimates and Change in Accounting Estimate	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 amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions reflected in the condensed consolidated financial statements include, but are not limited to, the estimated period of time the virtual items are available to the user, which is estimated as the average lifetime of a paying user, and the estimated amount of consumable and durable virtual items purchased for which the Company lacks specific information that is used for revenue recognition, useful lives of property and equipment and intangible assets, fair value of assets and liabilities acquired through acquisitions, accrued liabilities (including accrued developer exchange fees), contingent liabilities, valuation of deferred tax assets and liabilities, stock-based compensation expense, the discount rate used in measuring our operating lease liabilities, the carrying value of operating lease right-of-use assets, evaluation of recoverability of goodwill, intangible assets and long-lived assets, and as necessary, estimates of fair value to measure impairment losses. Management believes that the estimates, and judgments upon which they rely, are reasonable based upon information available to them at the time that these estimates and judgments are made. Actual results could differ from those estimates and any such differences may be material to the condensed consolidated financial statements. To the extent that there are material differences between these estimates and actual results, the Company’s condensed consolidated financial statements will be affected.
Developer Exchange Fees Expense	Developer Exchange Fees Expense The Company has established an incentive program for developers and creators to build and operate virtual experiences within the Roblox environment. Developers and creators can earn Robux through the sale of access to their experiences and enhancements in their experiences, the sale of content and tools between developers through the Studio Marketplace, and the sale of items to users through the Avatar Marketplace. Developers can also earn Robux through our engagement-based reward program that rewards developers based on the number of hours spent in their experiences by Roblox Premium subscribers. Under certain conditions, and in compliance with applicable law, these developers and creators are eligible to receive a cash payout based on the amount of accumulated earned Robux through our Developer Exchange Program. In order to be qualified for our Developer Exchange Program and eligible to exchange earned Robux for real-world currency, developers and creators must meet certain conditions, such as having earned the minimum amount of Robux required to qualify for the program, a verified developer account, and an account in good standing. On January 31, 2022, we reduced the minimum amount of earned Robux required to qualify for the program from 100,000 Robux to 50,000 Robux and subsequently on January 31, 2023, we further reduced the minimum requirement from 50,000 Robux to 30,000 Robux. The Company recognizes the expense associated with the Developer Exchange Program as Robux are earned by developers and creators that are qualified and registered in the Developer Exchange Program.
Short-Term and Long-Term Investments	Short-Term and Long-Term Investments Realized gains and losses for all investments are determined using the specific-identification method and are reflected as a component of other income/(expense), net in the condensed consolidated statements of operations. Debt Securities Short-term and long-term investments include corporate debt securities, commercial paper, U.S. Treasury securities, U.S. agency securities, foreign government securities, and certificates of deposits. Based on our intentions, all debt investments are classified as available-for-sale and are reported at fair value with unrealized gains and losses recorded as a separate component of other comprehensive income, net of tax. The Company determines the appropriate classification of its investments as short-term or long-term at the time of purchase and reevaluates such determination at each reporting period based on their respective maturity dates and the Company’s reasonable expectation with regard to those investments (e.g. expectations of future sales or redemptions). For debt securities in an unrealized loss position, we first consider whether we intend to or it is more likely than not that we will be required to sell the individual security prior to recovery of its amortized cost basis and if so, we adjust the carrying value of security down to its fair value, with the amount of the write-down recorded as a realized loss within other income/(expense), net. Otherwise, we determine whether a decline in fair value is attributable to a partial or full credit loss by reviewing factors such as the extent to which the fair value is less than the amortized cost basis, changes in interest rates since the purchase of the security, the financial condition of the issuer, including changes in credit ratings, the remaining payment terms of the security, as well as any adverse conditions specifically related to the security, the issuer’s industry or its geographic area. If a credit loss exists, we adjust the carrying value by recording expense within other income/(expense), net equal to the amount of the credit loss, with such amount limited to the amount of the unrealized loss. Subsequent recoveries of fair value originally attributed to a credit loss are subsequently recognized as income within other income/(expense), net. Finally, any unrealized loss not deemed to be attributable to a credit loss is recognized as component of other comprehensive income/(loss), net of tax. For purposes of identifying and measuring credit losses, the Company excludes any related accrued interest from both the fair value and amortized cost basis of the investment. Accrued interest receivable, net of the allowance for credit losses (if any), is recorded as a component of prepaid expenses and other current assets in our condensed consolidated financial statements. The Company’s investment policy limits the amount of credit exposure in its portfolio by imposing credit rating minimums and limiting purchases by security type and sector. Equity Securities with Readily Determinable Fair Value Short-term investments include mutual fund investments related to the Company’s nonqualified deferred compensation plan, which are held in a rabbi trust. The Company classifies these investments as trading securities as the rabbi trust actively manages the asset allocation to match the participants’ hypothetical fund allocations. The Company considers investments held in the rabbi trust to be restricted given their withdrawal and general use is legally restricted. All equity investments are reported at fair value, with unrealized gains and losses recorded within other income/(expense), net in our condensed consolidated statement of operations.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Accounting Pronouncements Recently Adopted In October 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2021-08, “Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers”. Under ASU 2021-08, an acquirer must recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606, as if it had originated the contracts. Prior to this ASU, an acquirer generally recognized contract assets acquired and contract liabilities assumed that arose from contracts with customers at fair value on the acquisition date. The Company adopted the ASU on January 1, 2023 and the adoption did not have a material impact on the Company’s condensed consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted The Company is in the process of reviewing all issued, but not yet effective, accounting pronouncements and does not believe the future adoption of any such accounting pronouncements will cause a material impact on its condensed consolidated financial statements.

Basis of Presentation and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2023

The Company’s fiscal year ends on December 31. For example, references to fiscal year 2023 and 2022 refer to the fiscal year ending December 31, 2023 and December 31, 2022, respectively.

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”), and applicable rules and regulations of the Securities and Exchange Commission (“SEC”), regarding interim financial reporting. Accordingly, they do not include all disclosures normally required in annual consolidated financial statements prepared in accordance with U.S. GAAP. Therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 28, 2023.

In the Company’s opinion, the information contained herein reflects all adjustments necessary for a fair presentation of the Company’s results of operations, financial position, cash flows, and stockholders’ equity. All such adjustments are of a normal, recurring nature. The results of operations for the three and six months ended June 30, 2023 shown in this report are not necessarily indicative of the results to be expected for the full year ending December 31, 2023 or any other interim period.

For a discussion of the Company’s significant accounting policies, refer to the headers “Developer Exchange Fees Expense” and “Short-Term and Long-Term Investments” below, as well as the significant accounting policies as described in the Company’s consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, which was filed with the SEC on February 28, 2023.

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company and subsidiaries over which the Company has control. All intercompany transactions and balances have been eliminated. The condensed consolidated financial statements include 100% of the accounts of wholly owned and majority owned subsidiaries, and the ownership interest of minority investors is recorded as noncontrolling interest.

Use of Estimates and Change in Accounting Estimate

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 amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions reflected in the condensed consolidated financial statements include, but are not limited to, the estimated period of time the virtual items are available to the user, which is estimated as the average lifetime of a paying user, and the estimated amount of consumable and durable virtual items purchased for which the Company lacks specific information that is used for revenue recognition, useful lives of property and equipment and intangible assets, fair value of assets and liabilities acquired through acquisitions, accrued liabilities (including accrued developer exchange fees), contingent liabilities, valuation of deferred tax assets and liabilities, stock-based compensation expense, the discount rate used in measuring our operating lease liabilities, the carrying value of operating lease right-of-use assets, evaluation of recoverability of goodwill, intangible assets and long-lived assets, and as necessary, estimates of fair value to measure impairment losses. Management believes that the estimates, and judgments upon which they rely, are reasonable based upon information available to them at the time that these estimates and judgments are made. Actual results could differ from those estimates and any such differences may be material to the condensed consolidated financial statements. To the extent that there are material differences between these estimates and actual results, the Company’s condensed consolidated financial statements will be affected.

Developer Exchange Fees Expense

The Company has established an incentive program for developers and creators to build and operate virtual experiences within the Roblox environment. Developers and creators can earn Robux through the sale of access to their experiences and enhancements in their experiences, the sale of content and tools between developers through the Studio Marketplace, and the sale of items to users through the Avatar Marketplace. Developers can also earn Robux through our engagement-based reward program that rewards developers based on the number of hours spent in their experiences by Roblox Premium subscribers. Under certain conditions, and in compliance with applicable law, these developers and creators are eligible to receive a cash payout based on the amount of accumulated earned Robux through our Developer Exchange Program. In order to be qualified for our Developer Exchange Program and eligible to exchange earned Robux for real-world currency, developers and creators must meet certain conditions, such as having earned the minimum amount of Robux required to qualify for the program, a verified developer account, and an account in good standing. On January 31, 2022, we reduced the minimum amount of earned Robux required to qualify for the program from 100,000 Robux to 50,000 Robux and subsequently on January 31, 2023, we further reduced the minimum requirement from 50,000 Robux to 30,000 Robux.

The Company recognizes the expense associated with the Developer Exchange Program as Robux are earned by developers and creators that are qualified and registered in the Developer Exchange Program.

Short-Term and Long-Term Investments

Realized gains and losses for all investments are determined using the specific-identification method and are reflected as a component of other income/(expense), net in the condensed consolidated statements of operations.

Debt Securities

Short-term and long-term investments include corporate debt securities, commercial paper, U.S. Treasury securities, U.S. agency securities, foreign government securities, and certificates of deposits. Based on our intentions, all debt investments are classified as available-for-sale and are reported at fair value with unrealized gains and losses recorded as a separate component of other comprehensive income, net of tax. The Company determines the appropriate classification of its investments as short-term or long-term at the time of purchase and reevaluates such determination at each reporting period based on their respective maturity dates and the Company’s reasonable expectation with regard to those investments (e.g. expectations of future sales or redemptions).

For debt securities in an unrealized loss position, we first consider whether we intend to or it is more likely than not that we will be required to sell the individual security prior to recovery of its amortized cost basis and if so, we adjust the carrying value of security down to its fair value, with the amount of the write-down recorded as a realized loss within other income/(expense), net.

Otherwise, we determine whether a decline in fair value is attributable to a partial or full credit loss by reviewing factors such as the extent to which the fair value is less than the amortized cost basis, changes in interest rates since the purchase of the security, the financial condition of the issuer, including changes in credit ratings, the remaining payment terms of the security, as well as any adverse conditions specifically related to the security, the issuer’s industry or its geographic area. If a credit loss exists, we adjust the carrying value by recording expense within other income/(expense), net equal to the amount of the credit loss, with such amount limited to the amount of the unrealized loss. Subsequent recoveries of fair value originally attributed to a credit loss are subsequently recognized as income within other income/(expense), net. Finally, any unrealized loss not deemed to be attributable to a credit loss is recognized as component of other comprehensive income/(loss), net of tax.

For purposes of identifying and measuring credit losses, the Company excludes any related accrued interest from both the fair value and amortized cost basis of the investment. Accrued interest receivable, net of the allowance for credit losses (if any), is recorded as a component of prepaid expenses and other current assets in our condensed consolidated financial statements.

The Company’s investment policy limits the amount of credit exposure in its portfolio by imposing credit rating minimums and limiting purchases by security type and sector.

Equity Securities with Readily Determinable Fair Value

Short-term investments include mutual fund investments related to the Company’s nonqualified deferred compensation plan, which are held in a rabbi trust. The Company classifies these investments as trading securities as the rabbi trust actively manages the asset allocation to match the participants’ hypothetical fund allocations. The Company considers investments held in the rabbi trust to be restricted given their withdrawal and general use is legally restricted.

All equity investments are reported at fair value, with unrealized gains and losses recorded within other income/(expense), net in our condensed consolidated statement of operations.

Recent Accounting Pronouncements

Accounting Pronouncements Recently Adopted

In October 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2021-08, “Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers”. Under ASU 2021-08, an acquirer must recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with Topic 606, as if it had originated the contracts. Prior to this ASU, an acquirer generally recognized contract assets acquired and contract liabilities assumed that arose from contracts with customers at fair value on the acquisition date. The Company adopted the ASU on January 1, 2023 and the adoption did not have a material impact on the Company’s condensed consolidated financial statements.

Recent Accounting Pronouncements Not Yet Adopted

The Company is in the process of reviewing all issued, but not yet effective, accounting pronouncements and does not believe the future adoption of any such accounting pronouncements will cause a material impact on its condensed consolidated financial statements.

- Definition

Disclosure of accounting policy for investment in financial asset.

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