Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019
Income Tax Disclosure [Line Items]
Decrease in net deferred tax asset position due to change in tax rate	$ 15,800,000
Limited net operating loss carryforwards		$ 1,400,000
Accrued interest related to unrecognized tax benefits	$ 0	0
Federal
Income Tax Disclosure [Line Items]
Net operating loss carryforwards		164,400,000
Credit carryforwards		2,100,000
State
Income Tax Disclosure [Line Items]
Net operating loss carryforwards		129,600,000
Credit carryforwards		$ 2,200,000