Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2019

Summary of Gross Carrying Amount and Accumulated Amortization for Intangible Assets Resulting from Acquisitions

The following table summarizes the gross carrying amount and accumulated amortization for intangible assets resulting from acquisitions (in thousands):

				Developed			Customer
	Trademarks			Technology			Relationships			Total
Amortization period (in years)	5			10 – 12			4 – 12
Gross carrying amount at December 31, 2018	$	600		$	8,300		$	15,039		$	23,939
Accumulated amortization		(77	)		(3,978	)		(8,904	)		(12,959	)
Intangible assets, net at December 31, 2018	$	523		$	4,322		$	6,135		$	10,980
Gross carrying amount at June 30, 2019	$	762		$	9,106		$	15,754		$	25,622
Accumulated amortization		(152	)		(4,426	)		(9,666	)		(14,244	)
Intangible assets, net at June 30, 2019	$	610		$	4,680		$	6,088		$	11,378

Amortization Expense Included in Condensed Consolidated Statements of Operations

The following table illustrates the amortization expense included in the condensed consolidated statements of operations for the three and six months ended June 30, 2019 and 2018, respectively (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Cost of revenue	$	224	$	187	$	445	$	336
Selling and marketing		419		345		838		643
Total	$	643	$	532	$	1,283	$	979

Estimated Future Amortization Expense of Purchased Intangible Assets with Definite Lives

The estimated annual future amortization expense for purchased intangible assets with definite lives as of June 30, 2019 was as follows (in thousands):

2019 (remaining six months)	$	1,285
2020		2,569
2021		1,114
2022		1,114
2023		1,038
Thereafter		4,258
Total	$	11,378

3VR, Thursby and Viscount

Summary of Carrying Amount of Goodwill Resulting from Acquisition of 3VR, Thursby, and Viscount

The following table summarizes the carrying amount of goodwill resulting from the acquisitions of 3VR, Thursby, and Viscount (in thousands):

	Premises			Identity		Total
Balance at December 31, 2018	$	5,796		$	3,490	$	9,286
Acquisition of business		1,173			—		1,173
Cancellation of holdback shares in connection with acquisition		(340	)		—		(340	)
Currency translation adjustment		19			—		19
Balance at June 30, 2019	$	6,648		$	3,490	$	10,138