Fair Value Measurements (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Change in fair value of stock price appreciation milestones	$ (5,881)	$ 8,700	$ (14,240)	$ 7,956
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Balance at the beginning of the period			24,168
Change in fair value of stock price appreciation milestones			(14,240)
Balance at the end of the period	$ 9,928		$ 9,928