Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2019

Goodwill and Other Intangible Assets

The change in the carrying amounts of goodwill for the nine months ended September 30, 2019 was as follows (in thousands):


	Amount
Balance at December 31, 2018	$	51,967
Currency translation adjustments		(1,662)
Balance at September 30, 2019	$	50,305

Schedule of Identifiable Intangible Assets

Purchased intangible assets consisted of the following as of September 30, 2019 and December 31, 2018 (in thousands):


	September 30, 2019						December 31, 2018
	Gross						Gross
	Carrying		Accumulated		Intangible		Carrying		Accumulated		Intangible
	Amount		Amortization		Assets, Net		Amount		Amortization		Assets, Net
Finite-lived intangible assets:
Proprietary adjuvant technology	$	7,597	$	(2,341)	$	5,256	$	8,357	$	(2,263)	$	6,094
Collaboration agreements		3,430		(3,217)		213		3,773		(3,326)		447
Total identifiable intangible assets	$	11,027	$	(5,558)	$	5,469	$	12,130	$	(5,589)	$	6,541

Schedule of Estimated Amortization Expense

Estimated amortization expense for existing intangible assets for the remainder of 2019 and for each of the five succeeding years ending December 31 will be as follows (in thousands):


Year	Amount
2019 (remainder)	$	159
2020		530
2021		380
2022		380
2023		380
2024		380