Prepaid Expenses and Other Current Assets

3 Months Ended

Mar. 31, 2021

Prepaid Expense And Other Assets Current [Abstract]

Prepaid Expenses and Other Current Assets

4. PREPAID EXPENSES AND OTHER CURRENT ASSETS

Prepaids and other current assets consisted of the following as of December 31, 2020 and March 31, 2021:

	December 31, 2020		March 31, 2021
	(in thousands)
Prepaid inventory	$	4,361	$	10,055
Restricted cash		3,250		9,344
Prepaid insurance		1,504		765
Other		1,996		4,413
Prepaid and other current assets	$	11,111	$	24,577