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Summary of Activities in Shares of Capital Stock (Details) - shares
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Common Class A [Member]    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Outstanding shares at December 31, 2023 [1] 21,052,883 [2] 19,708,011
Exercise of stock options 63,512 239,191
Vesting of restricted stock units 1,325 810
Conversion of Class C to Class A 266 59,599
Outstanding shares at September 30, 2024 21,117,986 20,007,611
Common Class C [Member]    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Outstanding shares at December 31, 2023 [1] 3,120,432 [2] 3,031,453
Exercise of stock options
Vesting of restricted stock units
Conversion of Class C to Class A (266) (59,599)
Outstanding shares at September 30, 2024 3,120,166 2,971,854
[1] Adjusted retroactively for the effect of annual stock dividends
[2] Issued and outstanding shares have been adjusted retroactively for the effect of annual stock dividends.