Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill and accumulated impairment loss during the three months ended March 31, 2019 and year ended December 31, 2018 were as follows:


	Three Months Ended March 31, 2019									Twelve Months Ended December 31, 2018
	Gross Carrying Amount			Accumulated Impairment Loss			Net			Gross Carrying Amount			Accumulated Impairment Loss			Net
Beginning balance at January 1	$	731,272		$	(144,276	)	$	586,996		$	735,323		$	(144,276	)	$	591,047
Acquired goodwill⁽¹⁾		471,403			—			471,403			—			—			—
Foreign currency translation		(1,068	)		—			(1,068	)		(4,051	)		—			(4,051	)

Ending balance at March 31, 2019 and December 31, 2018	$	1,201,607		$	(144,276	)	$	1,057,331		$	731,272		$	(144,276	)	$	586,996

⁽¹⁾	During the three months ended March 31, 2019, the Company recorded $471,403 of goodwill related to the ESI Merger.

Intangible Assets

Components of the Company’s intangible assets are comprised of the following:


As of March 31, 2019:	Gross		Accumulated Impairment Charges			Accumulated Amortization			Foreign Currency Translation			Net
Completed technology⁽¹⁾	$	448,831	$	(105	)	$	(146,614	)	$	(162	)	$	301,950
Customer relationships⁽¹⁾		308,144		(1,406	)		(68,738	)		(819	)		237,181
Patents, trademarks, trade names and other⁽¹⁾		120,895		—			(40,976	)		41			79,960

	$	877,870	$	(1,511	)	$	(256,328	)	$	(940	)	$	619,091

⁽¹⁾

During the three months ended March 31, 2019, the Company recorded $318,600 of separately identified intangible assets related to the ESI Merger, of which $276,400 was completed technology, $25,400 was customer relationships and $16,800 was trademarks, trade names and backlog. Separately, on January 1, 2019, the Company reclassified $6,428 of gross favorable lease assets and $3,445 of related accumulated amortization from patents, trademarks, trade names and other to the right-of-use asset line in the balance sheet.


As of December 31, 2018:	Gross		Impairment Charges			Accumulated Amortization			Foreign Currency Translation			Net
Completed technology	$	172,431	$	(105	)	$	(137,283	)	$	(73	)	$	34,970
Customer relationships		282,744		(1,406	)		(63,788	)		(269	)		217,281
Patents, trademarks, trade names and other		110,523		—			(42,954	)		(13	)		67,556

	$	565,698	$	(1,511	)	$	(244,025	)	$	(355	)	$	319,807

Estimated Net Amortization Expense

Aggregate net amortization expense related to acquired intangible assets for future years is as follows:


Year	Amount
2019 (remaining)	$	51,638
2020		55,751
2021		47,958
2022		45,480
2023		45,121
2024		44,204
Thereafter		273,039