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Stockholders' Equity Share Activity by Class (Details) - shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (1,074) (24,233)    
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (177,960) (126,971) (82,729)  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number   60,000    
Outstanding 79,035,069 78,572,110 77,801,854 76,942,872
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 327,713 304,570 297,891  
Class A Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (1,074) (24,233)    
Shares repurchased and retired during the period (shares) (100,404)      
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (177,960) (126,971) (82,729)  
Outstanding 66,699,872 63,131,007 56,429,825 54,071,188
Class B Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (638,614)      
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation 0 0 0  
Outstanding 3,206,580 4,457,958 7,803,364 8,645,249
Class C Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (325,000)      
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation 0 0 0  
Outstanding 9,128,617 10,983,145 13,568,665 14,226,435
Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) (100,404) (43,091) (17,289)  
Common Stock | Class A Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares)   (43,091) (17,289)  
Common Stock | Class B Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) 0 (32,805) 0  
Common Stock | Class C Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues 0 (32,805) 0  
Follow On Offering [Member] | Class A Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (963,614) (1,802,326)    
Follow On Offering [Member] | Class B Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues   (1,777,326)    
Follow On Offering [Member] | Class C Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues   (25,000)    
Common Stock | Class A Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares)   (4,128,600) (1,499,655)  
Common Stock | Class B Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) (612,764) (1,535,275) (841,885)  
Common Stock | Class C Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) (1,529,528) (2,593,325) (657,770)  
Unvested restricted share-based awards        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (740,249) (916,085) (959,000)  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 5,245,394 5,293,642 5,005,422 4,678,457
Granted in Period, Number of Shares 741,555 919,455 963,000  
Unvested restricted share-based awards | Class A Common Stock        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, New Issues (740,249) (916,085) (959,000)  
Unvested restricted share-based awards | Class B Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) 0 0 0  
Unvested restricted share-based awards | Class C Common Stock        
Class of Stock [Line Items]        
Shares repurchased and retired during the period (shares) 0 0 0  
Performance Shares        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 135,230 60,000 0  
Granted in Period, Number of Shares 75,230 60,000    
Performance Shares | Pro Forma        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 135,233