Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Other Intangible Assets

The change in the carrying amounts of goodwill for the three months ended March 31, 2020 was as follows (in thousands):


	Amount
Balance at December 31, 2019	$	51,154
Currency translation adjustments		(1,166)
Balance at March 31, 2020	$	49,988

Schedule of identifiable intangible assets

Purchased intangible assets consisted of the following as of March 31, 2020 and December 31, 2019 (in thousands):


	March 31, 2020						December 31, 2019
	Gross						Gross
	Carrying		Accumulated		Intangible		Carrying		Accumulated		Intangible
	Amount		Amortization		Assets, Net		Amount		Amortization		Assets, Net
Finite-lived intangible assets:
Proprietary adjuvant technology	$	7,452	$	(2,484)	$	4,968	$	7,985	$	(2,562)	$	5,423
Collaboration agreements		3,365		(3,281)		84		3,606		(3,448)		158
Total identifiable intangible assets	$	10,817	$	(5,765)	$	5,052	$	11,591	$	(6,010)	$	5,581

Schedule of estimated amortization expense

Estimated amortization expense for existing intangible assets for the remainder of 2020 and for each of the five succeeding years ending December 31 will be as follows (in thousands):


Year	Amount
2020 (remainder)	$	363
2021		373
2022		373
2023		373
2024		373
2025		373