Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The change in the carrying amounts of goodwill for the three months ended March 31, 2022 was as follows (in thousands):

	Amount
Balance at December 31, 2021	$	131,479
Currency translation adjustments	(723)
Balance at March 31, 2022	$	130,756

Schedule of identifiable intangible assets

Purchased intangible assets consisted of the following (in thousands):

	March 31, 2022						December 31, 2021
	Gross Carrying Amount		Accumulated  Amortization		Intangible Assets, Net		Gross Carrying Amount		Accumulated  Amortization		Intangible Assets, Net
Finite-lived intangible assets:
Proprietary adjuvant technology	$	8,004	$	(3,469)	$	4,535	$	8,239	$	(3,469)	$	4,770
Collaboration agreements	3,614		(3,614)		—		3,722		(3,722)		—
Total identifiable intangible assets	$	11,618	$	(7,083)	$	4,535	$	11,961	$	(7,191)	$	4,770

Schedule of estimated amortization expense

Estimated amortization expense for existing intangible assets for the remainder of 2022 and for each of the five succeeding years ending December 31 will be as follows (in thousands):

Year	Amount
2022 (remainder)	$	300
2023	400
2024	400
2025	400
2026	400
2027	400