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Other Balance Sheet Accounts Details - Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]    
Prepaid expenses $ 3,818 $ 6,163
Deferred contract acquisition costs 5,345 6,231
Other 3,227 2,673
Prepaid expenses and other current assets $ 12,390 $ 15,067