GOODWILL AND INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2021

The Company’s goodwill as of September 30, 2021 and December 31, 2020 are as follows:


Goodwill	September 30, 2021		December 31, 2020
	(In thousands)
Goodwill, beginning of period	$	24,783	$	24,783
Goodwill acquired	36,177		—
Currency translation adjustment	78		—
Goodwill, end of period	$	61,038	$	24,783

The Company’s purchased intangible assets as of September 30, 2021 and December 31, 2020 are as follows:


	September 30, 2021								December 31, 2020
	Gross		Additions		Accumulated Amortization		Net		Gross		Additions		Accumulated Amortization		Net
	(In thousands)


Intangible assets:
Other indefinite-lived intangibles	$	286	$	—	$	—	$	286	$	286	$	—	$	—	$	286

Intangible assets with finite lives:

Developed technology	13,100		7,150		(7,862)		12,388		13,100		—		(5,276)		7,824
Customer relationships	26,421		13,500		(9,717)		30,204		23,100		3,321		(5,723)		20,698
Trade names	—		500		(232)		268		—		—		—		—
Total purchased intangible assets	$	39,807	$	21,150	$	(17,811)	$	43,146	$	36,486	$	3,321	$	(10,999)	$	28,808

Amortization expense related to finite-lived intangible assets are as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(In thousands)
Developed technology	$	896	$	545	$	2,586	$	1,637
Customer relationships	1,532		702		3,994		2,103
Trade names	85		—		232		—
Total amortization expense	$	2,513	$	1,247	$	6,812	$	3,740

Amortization of developed technology, customer relationships and trade names is recorded to sales and marketing expense.