Accrued and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Payables And Accruals [Abstract]

Schedule of Accrued and Other Current Liabilities

	December 31,
	2020		2021
	(In thousands)
Employee benefits	$	9,000	$	10,345
Other		1,253		1,672
Total	$	10,253	$	12,017