Accrued and Other Current Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Payables And Accruals [Abstract]

Schedule of Accrued and Other Current Liabilities

	December 31,		September 30,
	2020		2021
	(In thousands)
Employee benefits	$	9,000	$	8,713
Other		1,253		1,819
Total	$	10,253	$	10,532