Goodwill and Acquired Intangible Assets

12 Months Ended

Jul. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Acquired Intangible Assets

Goodwill and Acquired Intangible Assets

The changes in the carrying amount of goodwill consisted of the following:

	Amount
	(in thousands)
Balance as of July 31, 2018	$	—
Goodwill acquired	7,479
Balance as of July 31, 2019	$	7,479

Acquired intangible assets consist of developed technology and customer relationships acquired through asset and business acquisitions. Acquired intangible assets are amortized using the straight-line method over their useful lives. The changes in acquired intangible assets consisted of the following:

	Gross						Accumulated Amortization						Net
	July 31, 2018		Additions		July 31, 2019		July 31, 2018		Amortization Expense		July 31, 2019		July 31, 2018		July 31, 2019		Weighted Average Useful life
	(in thousands)																(years)
Developed technology	$	—	$	9,456	$	9,456	$	—	$	(897)	$	(897)	$	—	$	8,559	3.5
Customer relationships	—		160		160		—		(11)		(11)		—		149		4.7
Total	$	—	$	9,616	$	9,616	$	—	$	(908)	$	(908)	$	—	$	8,708	3.5

Amortization expense of developed technology and customer relationships is recorded primarily within cost of revenues, sales and marketing expenses and research and development expenses in the consolidated statements of operations.

Future amortization expense of acquired intangible assets consisted of the following as of July 31, 2019:

	Amortization Expense
	(in thousands)
Year ending July 31,
2020	$	2,602
2021	2,601
2022	1,994
2023	1,490
2024	21
Total	$	8,708