Equity (Detail) |
Dec. 31, 2020
voting_rights
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| Class A Common Stock | |
| Schedule Of Stockholders Equity [Line Items] | |
| Voting rights per share | 1 |
| Class B Common Stock | |
| Schedule Of Stockholders Equity [Line Items] | |
| Voting rights per share | 10 |
| X | ||||||||||
- Definition Schedule Of Stockholders Equity [Line Items] No definition available.
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| X | ||||||||||
- Definition Voting Rights Per Share No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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