Asset Acquisitions and Collaboration Agreement (Tables)

6 Months Ended

Jun. 30, 2022

Business Acquisition, Pro Forma Information [Abstract]

Summary of intangible assets

The following table summarizes our recognized intangible assets as a result of the arrangements described in the following sections:

	June 30, 2022				December 31, 2021
	Weighted-average Estimated Useful Lives	Amount			Weighted-average Estimated Useful Lives	Amount
		(in thousands)				(in thousands)
Gross amount	12.5 years	$	32,500		12.8 years	$	47,500
Less accumulated amortization			(2,592	)			(2,566	)
Net book value		$	29,908			$	44,934