Income Taxes - Research and Development Tax Credit Carryforwards (Details) - Dec. 31, 2021 - Research and Development Tax Incentive $ in Millions, $ in Millions	USD ($)	AUD ($)
State and Local Jurisdiction
Tax credit carryforwards
Tax credit carryforwards available to reduce future income taxes	$ 7.9
Federal
Tax credit carryforwards
Tax credit carryforwards available to reduce future income taxes	19.2
Australian Taxation Office
Tax credit carryforwards
Tax credit carryforwards available to reduce future income taxes	$ 2.1	$ 2.9