Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
US federal net operating loss carryforwards	$ 7,200
Various state net operating loss carryforwards	7,700
Valuation allowance	1,257	$ 1,235
Tax deductible goodwill	35,176	$ 20,923	$ 20,079
Tax deductible goodwill	$ 35,200