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REVENUE RECOGNITION (Tables)
 12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Liability for Customer Credits
The following table summarizes the activity in the liability for customer credits for the years ended December 31, 2021 and 2020 (in thousands):
Customer Credits
Balance as of December 31, 2019$13,764 
Credits issued213,826 
Credits redeemed (1)
(147,096)
Breakage revenue recognized (2)
(21,364)
Foreign currency translation1,876 
Balance as of December 31, 2020$61,006 
Credits issued217,407 
Credits redeemed (1)
(178,720)
Breakage revenue recognized (2)
(41,800)
Foreign currency translation(1,335)
Balance as of December 31, 2021$56,558 
(1)Historically, customer credits have primarily been used within one year of issuance; however, usage patterns have been impacted from changes in customer behavior due to COVID-19.
(2)The increase in our breakage revenue recognized is largely due to a change in estimate due to lower customer usage patterns since the onset of COVID-19.
Schedule of Expected Credit Losses on Accounts Receivable
The following table summarizes the activity in the allowance for expected credit losses on accounts receivables for the year ended December 31, 2021 (in thousands):
Allowance for Expected Credit Losses
Balance as of December 31, 2019$3,693 
Change in provision9,631 
Write-offs(3,315)
Foreign currency translation(253)
Balance as of December 31, 2020$9,756 
Change in provision(28)
Write-offs(1,875)
Foreign currency translation121 
Balance as of December 31, 2021$7,974