Income Taxes Tax attributes available to reduce future taxable income (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 105,828
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	66,206
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,770
Foreign Tax Authority with Indefinite Expiration
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 18,467