Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Contingency [Line Items]
Valuation allowance	$ 4,370	$ 6,498
Increase (decrease) in deferred tax asset	2,100
Liability for uncertain tax positions	9,300	8,900
Unrecognized tax benefits that would impact effective tax rate	3,500	3,300
Income tax penalties and interest expense	500	$ (1,500)	$ 1,900
Domestic Tax Authority | Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
Operating loss carryforward	0
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating loss carryforward	$ 5,700