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Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Payables and Accruals [Abstract]    
Accrued employee compensation and benefits $ 4,105 $ 2,388
Accrued advertising expenses 2,596 4,119
Accrued legal settlement   4,750
Other current liabilities 2,720 1,968
Accrued expenses and other current liabilities $ 9,421 $ 13,225