Organization and Summary of Significant Accounting Policies (Policy)	12 Months Ended
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of PresentationThe consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with generally accepted accounting principles ("GAAP") in the United States of America 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 financial statements, and the reported amounts of revenues and expenses during the reporting periods. Significant items subject to such estimates and assumptions include the content asset amortization policy and the recognition and measurement of income tax assets and liabilities. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. On an ongoing basis, the Company evaluates these assumptions, judgments and estimates. Actual results may differ from these estimates.
Recently adopted accounting pronouncements and Recently issued accounting pronouncements not yet adopted	Recently adopted accounting pronouncements In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). ASU 2019-12 removes certain exceptions for performing intraperiod tax allocations, recognizing deferred taxes for investments, and calculating income taxes in interim periods. The guidance also simplifies the accounting for franchise taxes, transactions that result in a step-up in the tax basis of goodwill, and the effect of enacted changes in tax laws or rates in interim periods. The Company adopted ASU 2019-12 in the first quarter of 2021 and the adoption had no material impact to the Company’s consolidated financial statements. Recently issued accounting pronouncements not yet adopted In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires an acquirer in a business combination to recognize and measure contract assets and contract liabilities in accordance with Accounting Standards Codification Topic 606. ASU 2021-08 is effective for fiscal years beginning after December 15, 2022 and early adoption is permitted. While the Company is continuing to assess the timing of adoption and the potential impacts of ASU 2021-08, it does not expect ASU 2021-08 to have a material effect, if any, on its consolidated financial statements.
Cash Equivalents	Cash EquivalentsThe Company considers investments in instruments purchased with an original maturity of 90 days or less to be cash equivalents. The Company also classifies amounts in transit from payment processors for customer credit card and debit card transactions as cash equivalents.
Content	Content The Company acquires, licenses and produces content, including original programming, in order to offer members unlimited viewing of video entertainment. The content licenses are for a fixed fee and specific windows of availability. Payment terms for certain content licenses and the production of content require more upfront cash payments relative to the amortization expense. Payments for content, including additions to content assets and the changes in related liabilities, are classified within "Net cash provided by (used in) operating activities" on the Consolidated Statements of Cash Flows. The Company recognizes content assets (licensed and produced) as “Content assets, net” on the Consolidated Balance Sheets. For licensed content, the Company capitalizes the fee per title and records a corresponding liability at the gross amount of the liability when the license period begins, the cost of the title is known and the title is accepted and available for streaming. For produced content, the Company capitalizes costs associated with the production, including development costs, direct costs and production overhead. Participations and residuals are expensed in line with the amortization of production costs. Based on factors including historical and estimated viewing patterns, the Company amortizes the content assets (licensed and produced) in “Cost of revenues” on the Consolidated Statements of Operations over the shorter of each title's contractual window of availability or estimated period of use or ten years, beginning with the month of first availability. The amortization is on an accelerated basis, as the Company typically expects more upfront viewing, and film amortization is more accelerated than TV series amortization. On average, over 90% of a licensed or produced content asset is expected to be amortized within four years after its month of first availability. The Company reviews factors impacting the amortization of the content assets on an ongoing basis. The Company's estimates related to these factors require considerable management judgment. The Company's business model is subscription based as opposed to a model generating revenues at a specific title level. Content assets (licensed and produced) are predominantly monetized as a group and therefore are reviewed in aggregate at a group level when an event or change in circumstances indicates a change in the expected usefulness of the content or that the fair value may be less than unamortized cost. To date, the Company has not identified any such event or changes in circumstances. If such changes are identified in the future, these aggregated content assets will be stated at the lower of unamortized cost or fair value. In addition, unamortized costs for assets that have been, or are expected to be, abandoned are written off.
Acquisitions	AcquisitionsThe Company uses its best estimates and assumptions to assign fair value to the tangible and intangible assets acquired and liabilities assumed at the acquisition date. In addition, uncertain tax positions, tax-related valuation allowances and pre-acquisition contingencies are initially recorded in connection with a business combination as of the acquisition date. Intangible assets are amortized over their estimated useful lives.
Property and Equipment	Property and EquipmentProperty and equipment are carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the shorter of the estimated useful lives of the respective assets, generally up to 30 years, or the expected lease term for leasehold improvements, if applicable.
Trade Receivables	Trade ReceivablesTrade receivables consist primarily of amounts related to members and payment partners that collect membership fees on the Company's behalf. The Company evaluates the need for an allowance for credit losses based on historical collection trends, the financial condition of its payment partners, and external market factors. The Company's allowance for credit losses was not material as of December 31, 2021 and December 31, 2020.
Marketing	MarketingMarketing expenses consist primarily of advertising expenses and certain payments made to the Company’s partners, including consumer electronics ("CE") manufacturers, multichannel video programming distributors ("MVPDs"), mobile operators and internet service providers ("ISPs"). Advertising expenses include promotional activities such as digital and television advertising. Advertising costs are expensed as incurred.
Income Taxes	Income Taxes The Company records a provision for income taxes for the anticipated tax consequences of the reported results of operations using the asset and liability method. Deferred income taxes are recognized by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases as well as net operating loss and tax credit carryforwards. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The measurement of deferred tax assets is reduced, if necessary, by a valuation allowance for any tax benefits for which future realization is uncertain. The Company did not recognize certain tax benefits from uncertain tax positions within the provision for income taxes. The Company may recognize a tax benefit only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense.
Foreign Currency	Foreign Currency The functional currency for the Company's subsidiaries is determined based on the primary economic environment in which the subsidiary operates. The Company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates in effect at the end of each period. Revenues and expenses for these subsidiaries are translated using rates that approximate those in effect during the period. Gains and losses from these translations are recognized in cumulative translation adjustment included in "Accumulated other comprehensive income (loss)" in Stockholders’ equity on the Consolidated Balance Sheets. The Company remeasures monetary assets and liabilities that are not denominated in the functional currency at exchange rates in effect at the end of each period. Gains and losses from these remeasurements are recognized in interest and other income (expense).
Stock-Based Compensation	Stock-Based CompensationThe Company grants fully vested non-qualified stock options to its employees on a monthly basis. As a result of immediate vesting, stock-based compensation expense is fully recognized on the grant date, and no estimate is required for post-vesting option forfeitures.

Organization and Summary of Significant Accounting Policies (Policy)

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of PresentationThe consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated.

Use of Estimates

The preparation of consolidated financial statements in conformity with generally accepted accounting principles ("GAAP") in the United States of America 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 financial statements, and the reported amounts of revenues and expenses during the reporting periods. Significant items subject to such estimates and assumptions include the content asset amortization policy and the recognition and measurement of income tax assets and liabilities. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. On an ongoing basis, the Company evaluates these assumptions, judgments and estimates. Actual results may differ from these estimates.

Recently adopted accounting pronouncements and Recently issued accounting pronouncements not yet adopted

Recently adopted accounting pronouncements

In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). ASU 2019-12 removes certain exceptions for performing intraperiod tax allocations, recognizing deferred taxes for investments, and calculating income taxes in interim periods. The guidance also simplifies the accounting for franchise taxes, transactions that result in a step-up in the tax basis of goodwill, and the effect of enacted changes in tax laws or rates in interim periods. The Company adopted ASU 2019-12 in the first quarter of 2021 and the adoption had no material impact to the Company’s consolidated financial statements.

Recently issued accounting pronouncements not yet adopted

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires an acquirer in a business combination to recognize and measure contract assets and contract liabilities in accordance with Accounting Standards Codification Topic 606. ASU 2021-08 is effective for fiscal years beginning after December 15, 2022 and early adoption is permitted. While the Company is continuing to assess the timing of adoption and the potential impacts of ASU 2021-08, it does not expect ASU 2021-08 to have a material effect, if any, on its consolidated financial statements.

Cash Equivalents

Cash EquivalentsThe Company considers investments in instruments purchased with an original maturity of 90 days or less to be cash equivalents. The Company also classifies amounts in transit from payment processors for customer credit card and debit card transactions as cash equivalents.

Content

The Company acquires, licenses and produces content, including original programming, in order to offer members unlimited viewing of video entertainment. The content licenses are for a fixed fee and specific windows of availability. Payment terms for certain content licenses and the production of content require more upfront cash payments relative to the amortization expense. Payments for content, including additions to content assets and the changes in related liabilities, are classified within "Net cash provided by (used in) operating activities" on the Consolidated Statements of Cash Flows.

The Company recognizes content assets (licensed and produced) as “Content assets, net” on the Consolidated Balance Sheets. For licensed content, the Company capitalizes the fee per title and records a corresponding liability at the gross amount of the liability when the license period begins, the cost of the title is known and the title is accepted and available for streaming. For produced content, the Company capitalizes costs associated with the production, including development costs, direct costs and production overhead. Participations and residuals are expensed in line with the amortization of production costs.

Based on factors including historical and estimated viewing patterns, the Company amortizes the content assets (licensed and produced) in “Cost of revenues” on the Consolidated Statements of Operations over the shorter of each title's contractual window of availability or estimated period of use or ten years, beginning with the month of first availability. The amortization is on an accelerated basis, as the Company typically expects more upfront viewing, and film amortization is more accelerated than TV series amortization. On average, over 90% of a licensed or produced content asset is expected to be amortized within four years after its month of first availability. The Company reviews factors impacting the amortization of the content assets on an ongoing basis. The Company's estimates related to these factors require considerable management judgment.

The Company's business model is subscription based as opposed to a model generating revenues at a specific title level. Content assets (licensed and produced) are predominantly monetized as a group and therefore are reviewed in aggregate at a group level when an event or change in circumstances indicates a change in the expected usefulness of the content or that the fair value may be less than unamortized cost. To date, the Company has not identified any such event or changes in circumstances. If such changes are identified in the future, these aggregated content assets will be stated at the lower of unamortized cost or fair value. In addition, unamortized costs for assets that have been, or are expected to be, abandoned are written off.

Acquisitions

AcquisitionsThe Company uses its best estimates and assumptions to assign fair value to the tangible and intangible assets acquired and liabilities assumed at the acquisition date. In addition, uncertain tax positions, tax-related valuation allowances and pre-acquisition contingencies are initially recorded in connection with a business combination as of the acquisition date. Intangible assets are amortized over their estimated useful lives.

Property and Equipment

Property and EquipmentProperty and equipment are carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the shorter of the estimated useful lives of the respective assets, generally up to 30 years, or the expected lease term for leasehold improvements, if applicable.

Trade Receivables

Trade ReceivablesTrade receivables consist primarily of amounts related to members and payment partners that collect membership fees on the Company's behalf. The Company evaluates the need for an allowance for credit losses based on historical collection trends, the financial condition of its payment partners, and external market factors. The Company's allowance for credit losses was not material as of December 31, 2021 and December 31, 2020.

Marketing

MarketingMarketing expenses consist primarily of advertising expenses and certain payments made to the Company’s partners, including consumer electronics ("CE") manufacturers, multichannel video programming distributors ("MVPDs"), mobile operators and internet service providers ("ISPs"). Advertising expenses include promotional activities such as digital and television advertising. Advertising costs are expensed as incurred.

Income Taxes

The Company records a provision for income taxes for the anticipated tax consequences of the reported results of operations using the asset and liability method. Deferred income taxes are recognized by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases as well as net operating loss and tax credit carryforwards. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The measurement of deferred tax assets is reduced, if necessary, by a valuation allowance for any tax benefits for which future realization is uncertain.

The Company did not recognize certain tax benefits from uncertain tax positions within the provision for income taxes. The Company may recognize a tax benefit only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense.

Foreign Currency

The functional currency for the Company's subsidiaries is determined based on the primary economic environment in which the subsidiary operates. The Company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates in effect at the end of each period. Revenues and expenses for these subsidiaries are translated using rates that approximate those in effect during the period. Gains and losses from these translations are recognized in cumulative translation adjustment included in "Accumulated other comprehensive income (loss)" in Stockholders’ equity on the Consolidated Balance Sheets.

The Company remeasures monetary assets and liabilities that are not denominated in the functional currency at exchange rates in effect at the end of each period. Gains and losses from these remeasurements are recognized in interest and other income (expense).

Stock-Based Compensation

Stock-Based CompensationThe Company grants fully vested non-qualified stock options to its employees on a monthly basis. As a result of immediate vesting, stock-based compensation expense is fully recognized on the grant date, and no estimate is required for post-vesting option forfeitures.