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Subsequent Events - Additional Information (Narrative) (Details) - Subsequent Event [Member] - $ / shares
Nov. 26, 2020
Nov. 12, 2020
Oct. 29, 2020
Subsequent Events [Line Items]      
Date of announcement of dividend     Oct. 29, 2020
Date of payment of dividend Nov. 26, 2020    
Date of record of dividend   Nov. 12, 2020  
Class A Stock      
Subsequent Events [Line Items]      
Quarterly dividend payable amount per share     $ 0.12
Class B Stock      
Subsequent Events [Line Items]      
Quarterly dividend payable amount per share     $ 0.12