Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

The Company's intangible assets and estimated useful lives are classified as follows:



	March 31, 2019					December 31, 2018
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Finite-lived intangible assets:
Developed software and core technologies (3 – 15 years)	$	450,361	$	(318,209	)	$	410,680	$	(314,730	)
Customer lists and contract backlog (5 – 15 years)	238,629		(120,682		)	209,031		(117,614		)
Trade names (2 – 10 years)	142,409		(114,538		)	137,225		(113,677		)
Total	$	831,399	$	(553,429	)	$	756,936	$	(546,021	)
Indefinite-lived intangible asset:
Trade name	$	357				$	357

Amortization expense for the intangible assets reflected above was $8.3 million and $12.2 million for the three months ended March 31, 2019 and 2018, respectively.

As of March 31, 2019, estimated future amortization expense for the intangible assets reflected above is as follows:



(in thousands)
Remainder of 2019	$	25,433
2020	36,001
2021	33,709
2022	32,306
2023	30,442
2024	27,932
Thereafter	92,147
Total intangible assets subject to amortization	277,970
Indefinite-lived trade name	357
Other intangible assets, net	$	278,327

The changes in goodwill during the three months ended March 31, 2019 and 2018 were as follows:



(in thousands)	2019			2018
Beginning balance – January 1	$	1,572,455		$	1,378,553
Acquisitions and adjustments⁽¹⁾	181,201			—
Currency translation	(5,428		)	905
Ending balance – March 31	$	1,748,228		$	1,379,458

⁽¹⁾ In accordance with the accounting for business combinations, the Company recorded adjustments to goodwill for the effect of changes in the provisional fair values of the assets acquired and liabilities assumed during the measurement period (up to one year from the acquisition date) as the Company obtained new information about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date.

During the first quarter of 2019, the Company completed the annual impairment test for goodwill and the indefinite-lived intangible asset and determined that these assets had not been impaired as of the test date, January 1, 2019. No other events or circumstances changed during the three months ended March 31, 2019 that would indicate that the fair values of the Company's reporting unit and indefinite-lived intangible asset are below their carrying amounts.