Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Details)

v3.21.2
Earnings Per Share - Additional Information (Details)
 9 Months Ended
Sep. 30, 2021
class
vote
shares
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]  
Number of shares excluded from calculation of earnings per share | shares 0
Number of classes of stock | class 2
Restricted Stock Units  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]  
Right to receive common stock, upon vesting 1
Class A Common Stock  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]  
Common stock, voting rights, votes per share 1
Class B Common Stock  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]  
Common stock, voting rights, votes per share 10