GOODWILL AND PURCHASED INTANGIBLE ASSETS

9 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND PURCHASED INTANGIBLE ASSETS

The carrying value of goodwill and other intangibles, excluding fully amortized intangible assets as of December 31, 2019, is set forth in the following table:



As of	December 31, 2019					March 31, 2019
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization			Weighted Average Remaining Useful Life
Amortizing Assets
Existing technology	$	596,757	$	(177,829	)	$	566,881	$	(86,301	)	3.5 years
Customer relationships	245,437		(72,440		)	245,481		(36,245		)	4.1 years
Trade name/Trademarks	115,600		(19,267		)	115,600		(9,633		)	7.5 years
Non-amortizing assets
In-process R&D	—		—			29,892		—			N/A
Total intangible assets	$	957,794	$	(269,536	)	$	957,854	$	(132,179	)	4.2 years

Goodwill	$	1,279,897	$	—		$	1,278,380	$	—		N/A

For the three and nine months ended December 31, 2019, the Company recognized $46.1 million and $137.4 million, respectively in amortization expense. For the three and nine months ended December 31, 2018, the Company recognized $42.8 million and $113.8 million, respectively, in amortization expense.

As of December 31, 2019, the Company placed in service $58.0 million of in-process R&D which is being amortized on a straight-line basis.

As of December 31, 2019, expected amortization expense for other intangible assets for each of the next five years and thereafter is as follows:



in thousands	Amount
2020 (remaining three months)	$	46,296
2021	180,343
2022	166,060
2023	162,352
2024	80,940
Thereafter	52,267
	$	688,258