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Stockholders' Equity - Narrative (Details) - USD ($)
9 Months Ended
Sep. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Jan. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized for issuance (in shares) 1,000,000,000.0      
Common stock, par value (in dollars per share) $ 0.01   $ 0.01  
Preferred stock, shares authorized (in shares) 50,000,000   50,000,000  
Preferred stock, shares issued (in shares) 0   0  
Preferred stock, shares outstanding (in shares) 0   0  
Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, par value (in dollars per share)       $ 0.01
Common stock, shares authorized (in shares) 950,000,000.0   950,000,000  
Stock repurchase program, amount authorized for repurchase   $ 300,000,000.0    
Shares repurchased under Stock Repurchase Program (in shares) 0