GOODWILL AND PURCHASED INTANGIBLE ASSETS (Tables)

3 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The carrying value of goodwill and other intangibles, excluding fully amortized intangible assets as of June 30, 2019, is set forth in the following table:

As of	June 30, 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	$	585,867	(116,295		)	566,881		(86,301		)	4.0 years
Customer relationships	245,437		(48,306		)	245,481		(36,245		)	4.6 years
Trade name	115,600		(12,845		)	115,600		(9,633		)	8.0 years
Non-amortizing assets
In-process R&D	10,890		—			29,892		—			N/A
Total intangible assets	$	957,794	$	(177,446	)	$	957,854	$	(132,179	)	4.7 years
Goodwill	1,279,897		$	—		1,278,380		$	—		N/A

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of June 30, 2019, expected amortization expense for other intangible assets for each of the next five years and thereafter is as follows:

in thousands	Amount
2020	$	137,290
2021	178,211
2022	163,928
2023	160,220
2024	78,808
Thereafter	61,891
	$	780,348