Goodwill and Purchased Intangibles Assets

9 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Purchased Intangibles Assets

Goodwill and Purchased Intangibles Assets

The changes in the carrying amount of goodwill for the nine months ended December 31, 2019 consist of the following (in thousands):

Goodwill as of March 31, 2019	$	41,512
Goodwill acquired	3,600
Goodwill as of December 31, 2019	$	45,112

Purchased intangible assets subject to amortization as of December 31, 2019 consisted of the following (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	15,316	$	(1,257)	$	14,059

Purchased intangible assets subject to amortization as of March 31, 2019 consisted of the following (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Developed technology	$	18,716	$	(4,861)	$	13,855

Amortization expense of purchased intangible assets was $0.4 million and $0.4 million for the three months ended December 31, 2019 and 2018, respectively, and $1.3 million and $0.8 million for the nine months ended December 31, 2019 and 2018, respectively.

Estimated future amortization expense as of December 31, 2019 was as follows (in thousands):

Fiscal Years Ending March 31,	Estimated Future Amortization Expense
2020 (remaining three months)	$	368
2021	5,105
2022	4,619
2023	3,967
	$	14,059