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Stock-Based Compensation - Stock Options - General Information (Details)
9 Months Ended
Sep. 30, 2022
Stock-Based Compensation  
Percentage of the number of shares outstanding assuming conversion of all super voting shares and multiple voting shares to subordinate voting shares permitted to be issued (as a percent) 10.00%
Percentage of the fair market value of shares on the date of grant (as a percent) 100.00%
Stock options | Maximum  
Stock-Based Compensation  
Expiration period 10 years