Income Taxes - Net Operating Loss Carryforwards (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Domestic Tax Authority \| Earliest Tax Year
Net Operating Loss Carryforwards
NOL	$ 543,781
Domestic Tax Authority \| Latest Tax Year
Net Operating Loss Carryforwards
NOL	48,899
State
Net Operating Loss Carryforwards
NOL	$ 162,967