Capitalization - Common and Preferred Stock (Detail)	Dec. 31, 2021 Vote
Class B common stock
Class of Stock [Line Items]
Number of votes per share of common stock	10
Ratio for conversion into Class A common stock	1
Class A common stock
Class of Stock [Line Items]
Number of votes per share of common stock	1

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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