Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Examination [Line Items]
Federal corporate tax rate	21.00%	21.00%	21.00%
Increase (decrease) in net liability for unrecognized tax benefits	$ (141)	$ (31)
Accrued interest expense	100	100
Unrecognized tax benefits that would impact our effective tax rate	1,800	2,000
Interest included in total liability	400	$ 400
Significant increases or decreases for uncertain tax positions	$ 0
State and Foreign Tax Authorities | Minimum
Income Tax Examination [Line Items]
Period of statute of limitations (years)	3 years
State and Foreign Tax Authorities | Maximum
Income Tax Examination [Line Items]
Period of statute of limitations (years)	4 years