Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2016 and 2015 were as follows (in thousands):

Balance as of December 31, 2015	$	34,972
Goodwill acquired		2,476
Balance as of December 31, 2016	$	37,448

Summary of Acquired Intangible Assets Subject to Amortization

Acquired intangible assets subject to amortization as of December 31, 2016 and 2015 were as follows (in thousands):

	As of December 31, 2016
	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Acquired Technology	$	11,718	$	(4,085	)	$	7,633
Customer relationships		480		-			480
Trade name and other		280		-			280
Total	$	12,478	$	(4,085	)	$	8,393
	As of December 31, 2015
	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Acquired Technology	$	10,668	$	(2,677	)	$	7,991
Total	$	10,668	$	(2,677	)	$	7,991

Schedule of Expected Amortization Expense in Future Periods

As of December 31, 2016, the Company expects amortization expense in future periods to be as follows (in thousands):

	Acquired
Fiscal Year	Intangibles
2017	$	1,666
2018		1,666
2019		1,666
2020		1,666
Thereafter		1,729
Total expected amortization expense	$	8,393