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Goodwill (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Refer to the table below for our goodwill activity for the years ended December 31, 2020 and 2019.
Sirius XMPandoraTotal
Balance at December 31, 2018$2,290 $— $2,290 
Acquisition— 1,553 1,553 
Balance at December 31, 20192,290 1,553 3,843 
Acquisition— 235 235 
Impairment charge— (956)(956)
Balance at December 31, 2020$2,290 $832 $3,122