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Description of Business and Summary of Significant Accounting Policies - Deferred Compensation & Advertising Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Aug. 31, 2021
Defined Contribution Plan Disclosure [Line Items]        
Bonus plan compensation expense $ 95,046 $ 177 $ 408  
Advertising expense 2,396 1,726 1,579  
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | Nonqualified Plan        
Defined Contribution Plan Disclosure [Line Items]        
Bonus plan compensation expense 95,046 $ 177 $ 408  
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | Nonqualified Plan | DCP, One-Time Inducement        
Defined Contribution Plan Disclosure [Line Items]        
Reclassified cumulative compensation cost 4,739      
Bonus plan compensation expense 90,721      
Deferred compensation liability $ 95,460      
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | Nonqualified Plan | Class B Common Stock        
Defined Contribution Plan Disclosure [Line Items]        
Phantom shares, maximum elections (in shares)       1,500,000
Reduction in shares outstanding, diluted (in shares)       1,500,000
Reduction in shares outstanding, basic (in shares)       1,500,000