Income Taxes Tax attributes available to reduce future taxable income (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 190,386
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	106,687
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	2,558
Foreign Tax Authority with Indefinite Expiration
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 8,107