Stockholders' Equity (Deficit) - Convertible Preferred Stock - Additional Information (Details) - shares |
Oct. 02, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Class Of Stock [Line Items] | |||
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 | 10,000,000 |
| Preferred stock, shares issued | 0 | 0 | |
| Preferred stock, shares outstanding | 0 | 0 | |
| Initial Public Offering | Class B Common Stock | |||
| Class Of Stock [Line Items] | |||
| Convertible preferred stock, Shares converted | 80,800,000 | ||
| Stock conversion ratio | 100.00% |
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- Definition Conversion ratio of preferred stock to common stock. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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