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Goodwill
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The following table summarizes changes in the carrying amount of goodwill during the year ended December 31, 2021:

Balance as of December 31, 2020
$8,754 
Acquisitions100,685 
Balance as of December 31, 2021
$109,439 
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1.The measurement of acquired goodwill is provisional and subject to change upon completion of the final purchase accounting. See Note 3 for details.

No goodwill impairment indicators have been identified during the years ended December 31, 2021, 2020 and 2019.