Intangible Asset and Goodwill (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in carrying amount of goodwill by reporting unit

The following tables present goodwill information for each of the reportable segments for the three months ended March 31, 2019:

Reportable Segment:	As of December 31, 2018		Effect of Exchange Rates (1)		As of March 31, 2019
	(In thousands)
MID	$	66,643	$	—	$	66,643
RSD	140,535		650		141,185
Total	$	207,178	$	650	$	207,828

(1) Effect of exchange rates relates to foreign currency translation adjustments for the period.

	As of
	March 31, 2019
Reportable Segment:	Gross Carrying Amount		Accumulated Impairment Losses			Net Carrying Amount
	(In thousands)
MID	$	66,643	$	—		$	66,643
RSD	141,185		—			141,185
Other	21,770		(21,770		)	—
Total	$	229,598	$	(21,770	)	$	207,828

Components of intangible assets

The components of the Company’s intangible assets as of March 31, 2019 and December 31, 2018 were as follows:

		As of March 31, 2019
	Useful Life	Gross Carrying Amount (1)		Accumulated Amortization (1)			Net Carrying Amount
		(In thousands)
Existing technology	3 to 10 years	$	259,389	$	(217,734	)	$	41,655
Customer contracts and contractual relationships	1 to 10 years	67,395		(55,143		)	12,252
Non-compete agreements and trademarks	3 years	300		(300		)	—
In-process research and development	Not applicable	1,600		—			1,600
Total intangible assets		$	328,684	$	(273,177	)	$	55,507

		As of December 31, 2018
	Useful Life	Gross Carrying Amount (1)		Accumulated Amortization (1)			Net Carrying Amount
		(In thousands)
Existing technology	3 to 10 years	$	258,903	$	(213,824	)	$	45,079
Customer contracts and contractual relationships	1 to 10 years	67,667		(54,410		)	13,257
Non-compete agreements and trademarks	3 years	300		(300		)	—
In-process research and development	Not applicable	1,600		—			1,600
Total intangible assets		$	328,470	$	(268,534	)	$	59,936

(1) The changes in gross carrying amount and accumulated amortization reflect the effects of exchange rates during the period.

Estimated future amortization expense of intangible assets

The estimated future amortization of intangible assets as of March 31, 2019 was as follows (amounts in thousands):

Years Ending December 31:	Amount
2019 (remaining 9 months)	$	14,903
2020	20,023
2021	13,317
2022	2,062
2023	1,541
Thereafter	2,061
Total amortizable purchased intangible assets	$	53,907
In-process research and development	1,600
Total intangible assets	$	55,507