Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit) (less than for 3 months ended September 30, 2020)	$ 38	$ (263)	$ (132)	$ (1,080)
Operating Loss Carryforwards [Line Items]
Provision for (benefit from) income taxes	38	$ (263)	$ (132)	$ (1,080)
Deferred Tax Assets, Tax Deferred Expense					$ 18,400
Less than
Income Tax Disclosure [Abstract]
Income tax expense (benefit) (less than for 3 months ended September 30, 2020)	100
Operating Loss Carryforwards [Line Items]
Provision for (benefit from) income taxes	$ 100
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards					86,800
Tax Credit Carryforward, Amount					800
Tax Credit Carryforward, Amount					800
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards					$ 2,500