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Insider Trading Arrangements
 3 Months Ended 6 Months Ended
Jun. 30, 2023
shares
Jun. 30, 2023
shares
Trading Arrangements, by Individual    
Non-Rule 10b5-1 Arrangement Adopted false  
Non-Rule 10b5-1 Arrangement Terminated false  
David R. Shaman [Member]    
Trading Arrangements, by Individual    
Material Terms of Trading Arrangement   Effective June 6, 2023, David R. Shaman, Chief Legal Officer and Secretary, terminated a trading plan established pursuant to Rule 10b5‑1 of the Exchange Act, which was intended to satisfy the affirmative defense conditions of Rule 10b5‑1(c) and was adopted effective December 16, 2022, to sell an aggregate of 65,696 shares of our Class B common stock through December 31, 2023. Effective June 8, 2023, Mr. Shaman adopted a trading plan established pursuant to Rule 10b5‑1 of the Exchange Act, which is intended to satisfy the affirmative defense conditions of Rule 10b5‑1(c), to sell an aggregate of 127,942 shares of our Class B common stock through March 31, 2024.
December 2022 Plan [Member] | David R. Shaman [Member]    
Trading Arrangements, by Individual    
Name David R. Shaman  
Title Chief Legal Officer and Secretary  
Adoption Date December 16, 2022  
Rule 10b5-1 Arrangement Terminated true  
Termination Date June 6, 2023  
Aggregate Available 65,696 65,696
June 2023 Plan [Member] | David R. Shaman [Member]    
Trading Arrangements, by Individual    
Name David R. Shaman  
Title Chief Legal Officer and Secretary  
Rule 10b5-1 Arrangement Adopted true  
Adoption Date June 8, 2023  
Arrangement Duration 297 days  
Aggregate Available 127,942 127,942