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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Allowance for receivables $ 33,228 $ 38,777
Class of Stock [Line Items]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 100,000,000 100,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Common stock, shares authorized (in shares) 2,100,000,000  
Common stock, shares issued (in shares) 146,483,042  
Series A Preferred Stock    
Class of Stock [Line Items]    
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 60,000 60,000
Preferred stock, shares issued (in shares) 60,000 60,000
Class A Common Stock    
Class of Stock [Line Items]    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 1,000,000,000 1,000,000,000
Common stock, shares issued (in shares) 112,033,028 64,726,864
Class B Common Stock    
Class of Stock [Line Items]    
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 1,000,000,000 1,000,000,000
Common stock, shares issued (in shares) 29,070,192 6,886,925
Special Warrants    
Class of Stock [Line Items]    
Common stock, shares issued (in shares) 5,379,822 74,835,899
Common stock, shares outstanding (in shares) 5,379,822 74,835,899
Treasury stock    
Class of Stock [Line Items]    
Treasury stock, shares 261,181 254,066