GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill

The following table represents changes in the carrying amount of goodwill:

	(in thousands)
Balance as of December 31, 2018	$	473,916
Acquisitions	—
Adjustments	—
Balance as of December 31, 2019	$	473,916

Schedule of carrying amount of intangible assets

The carrying amounts of intangible assets as of December 31, 2019 were as follows:

	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Useful Life
	(in thousands)							(in years)
Licensed technology	$	82,673	$	(44,950	)	$	37,723	1-9
Developed technology	285,443		(203,376		)	82,067		4-7
Customer relationships	69,776		(37,513		)	32,263		4-9
Trade names	5,600		(5,600		)	—		3
Total intangible assets	$	443,492	$	(291,439	)	$	152,053

The carrying amounts of intangible assets as of December 31, 2018 were as follows:

	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Useful Life
	(in thousands)							(in years)
Licensed technology	$	49,546	$	(30,062	)	$	19,484	1-8
Developed technology	285,443		(164,406		)	121,037		4-7
Customer relationships	69,776		(31,246		)	38,530		4-9
Trade names	5,600		(5,323		)	277		3
Total intangible assets	$	410,365	$	(231,037	)	$	179,328

Schedule of estimated future amortization expense from amortizable intangible assets

The estimated future amortization expense is as follows:

	(in thousands)
2020	$	55,857
2021	53,128
2022	18,010
2023	9,572
2024	8,521
Thereafter	6,965
Total	$	152,053