Summary of Significant Accounting Policies - Employee Retention Credit (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Unusual or Infrequent Item, or Both [Line Items]
Eligible refundable credit		$ 2.9
Prepaid expenses and other current assets
Unusual or Infrequent Item, or Both [Line Items]
Amount receivable from government	$ 2.9
Research and development
Unusual or Infrequent Item, or Both [Line Items]
Employee retention tax credit	2.4
General and administrative
Unusual or Infrequent Item, or Both [Line Items]
Employee retention tax credit	$ 0.5