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Summary of Activities in Shares of Capital Stock (Details) - shares
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Common Class A [Member]    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Outstanding shares 21,255,006 21,052,883 [1]
Exercise of stock options 66,273  
Vesting of restricted stock units 460 405
Outstanding shares 21,321,739 21,053,462 [1]
Conversion of Class C to Class A   174
Common Class C [Member]    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Outstanding shares 3,321,833 3,120,432 [1]
Exercise of stock options 95,337  
Vesting of restricted stock units
Outstanding shares 3,417,170 3,120,258 [1]
Common Class B [Member]    
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]    
Outstanding shares 0  
Outstanding shares 0  
Conversion of Class C to Class A   174
[1] Adjusted retroactively for the effect of annual stock dividends