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Common Stock - Class B common stock (Details) - Class B Common Stock	12 Months Ended
	Dec. 31, 2021 Vote $ / shares shares	Dec. 31, 2020 Vote $ / shares shares
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	20,000,000	6,032,183
Common stock, par value per share (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0
Number of votes | Vote	0	0

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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