Other Long-Term Liabilities - CARES Act (Details) $ in Thousands	Mar. 31, 2021 USD ($)
CARES Act deferred payroll taxes	$ 7,600
CARES Act deferred payroll taxes, noncurrent	3,821
Accrued liabilities
CARES Act deferred payroll taxes, current	3,800
Other long-term liabilities
CARES Act deferred payroll taxes, noncurrent	$ 3,800