Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The change in the carrying amounts of goodwill for the three months ended March 31, 2021 was as follows (in thousands):

	Amount
Balance at December 31, 2020	$	135,379
Currency translation adjustments	(4,500)
Balance at March 31, 2021	$	130,879

Schedule of identifiable intangible assets

Purchased intangible assets consisted of the following as of March 31, 2021 and December 31, 2020 (in thousands):

	March 31, 2021						December 31, 2020
	Gross Carrying Amount		Accumulated  Amortization		Intangible Assets, Net		Gross Carrying Amount		Accumulated  Amortization		Intangible Assets, Net
Finite-lived intangible assets:
Proprietary adjuvant technology	$	8,545	$	(3,275)	$	5,270	$	9,099	$	(3,374)	$	5,725
Collaboration agreements	3,859		(3,859)		—		4,109		(4,109)		—
Total identifiable intangible assets	$	12,404	$	(7,134)	$	5,270	$	13,208	$	(7,483)	$	5,725

Schedule of estimated amortization expense

Estimated amortization expense for existing intangible assets for the remainder of 2021 and for each of the five succeeding years ending December 31 will be as follows (in thousands):

Year	Amount
2021 (remainder)	$	320
2022	427
2023	427
2024	427
2025	427
2026	427