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Goodwill and Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill
The following table summarizes the changes in the carrying amount of goodwill (in millions):
 

 
  
Amount
 
Balance at December 31, 2019
   $ 81.4  
Acquisitions
     38.4  
    
 
 
 
Balance at December 31, 2020
   $  119.8  
Acquisitions
     68.5  
    
 
 
 
Balance at December 31, 2021
   $ 188.3  
    
 
 
 
Summary of Carrying Amounts and Accumulated Amortization of Intangible Assets
The following table
summarizes the carrying amounts and accumulated amortization of intangible assets (in millions, except weighted-average remaining useful life):
 
 
  
December 31, 2021
 
 
  
Useful Life
 
  
Gross Carrying
Amount
 
  
Accumulated
Amorization
 
 
Net Value
 
  
Weighted
Average
Remaining
Useful Life
(Years)
 
Finite-lived intangible assets:
                                           
Customer
relationships
    
2-9 years
     $  150.4      $  (42.9   $  107.5        4.3  
Acquired technology
     2-5
 
years
       17.5        (9.0     8.5        3.2  
Trademarks
     2-9
 
years
       13.6        (2.7     10.9        5.4  
Indefinite-lived intangible assets
:
 
                                  
Domain name
              0.3        —         0.3        n/a  
             
 
 
    
 
 
   
 
 
          
Total
            $ 181.8      $  (54.6   $ 127.2           
             
 
 
    
 
 
   
 
 
          
 
  
December 31, 2020
 
 
  
Useful Life
 
  
Gross Carrying
Amount
 
  
Accumulated
Amorization
 
 
Net Value
 
  
Weighted
Average
Remaining
Useful Life
(Years)
 
Finite-lived intangible assets:
                                           
Customer
relationships
    
3-9 years
     $  59.7      $  (22.4   $  37.3        4.4  
Workforce
     2 years        9.7        (9.7     —          —    
Acquired technology
    
2-3
years
       12.0        (5.7     6.3        2.6  
Trademarks
    
2-3
years
       2.3        (0.6     1.7        2.7  
Indefinite-lived intangible assets
:
 
                                  
Domain name
              0.3        —         0.3        n/a  
             
 
 
    
 
 
   
 
 
          
Total
            $ 84.0      $  (38.4   $ 45.6           
             
 
 
    
 
 
   
 
 
          
Summary of Finite-Lived Intangible Assets, Future Amortization Expense
Estimated future amortization expense for finite-lived intangible assets as of December 31, 2021 is as follows (in millions):
 
2022
   $ 32.7  
2023
     31.2  
2024
     26.8  
2025
     21.2  
2026
     9.8  
Thereafter
     5.2  
    
 
 
 
Total
   $ 126.9