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Restructuring (Tables)
12 Months Ended
Dec. 31, 2020
Restructuring and Related Activities [Abstract]  
Restructuring Expense by Components
Total restructuring expense included in our statement of operations for the years ended December 31, 2020 and 2019 is comprised of the following:
Year Ended December 31,
20202019
Cost of revenue — restructuring:
Employee severance and benefits
$173 $— 
173 — 
Operating expenses — restructuring:
Employee severance and benefits
$2,041 $398 
2,041 398 
Total restructuring expense$2,214 $398 
Schedule of Accrued Restructuring Liabilities
The following is a rollforward of the accrued liabilities related to restructuring for the year ended December 31, 2020:

Balance as of December 31, 2019
ExpensedPayments
Balance as of December 31, 2020
Employee severance and benefits
$66 $2,214 $(1,650)$630 
Accrued costs related to restructuring
$66 $2,214 $(1,650)$630