|12 Months Ended|
Dec. 31, 2020
9. ACCRUED LIABILITIES
The following table sets forth the components of accrued liabilities, in thousands:
Certain prior year amounts have been reclassified to conform to the current year presentation. As of December 31, 2020, employee tax-related liabilities includes $12.0 million employer portion of social security taxes which were deferred under the CARES Act and are due by December 31, 2021.