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Common Stock - Class B common stock (Details) - Class B Common Stock
12 Months Ended
Dec. 31, 2022
Vote
$ / shares
shares
Dec. 31, 2021
Vote
$ / shares
shares
Class of Stock [Line Items]    
Common stock, shares authorized (in shares) 20,000,000 20,000,000
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