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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill and accumulated impairment losses were as follows:

		2018												2017
		Gross Carrying Amount				Accumulated Impairment Loss				Net				Gross Carrying Amount				Accumulated Impairment Loss				Net
Beginning balance at January		$	735,323			$	(144,276	)		$	591,047			$	727,999			$	(139,414	)		$	588,585
Sale of business(1)			—				—				—				(3,115	)			—				(3,115	)
Impairment loss(2)			—				—				—				—				(4,862	)			(4,862	)
Foreign currency translation			(4,051	)			—				(4,051	)			10,439				—				10,439
Ending balance at December 31		$	731,272			$	(144,276	)		$	586,996			$	735,323			$	(144,276	)		$	591,047

(1) In 2017, the Company sold its Data Analytics business and, as a result, charged the related goodwill of $3,115 to the gain on sale of business.

(2) In 2017, the Company recorded an impairment loss of $4,862 related to the write-off of goodwill as a result of the discontinuation of a product line and consolidation of two manufacturing plants.

Intangible Assets

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

As of December 31, 2018		Gross				Impairment Charges(1)				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

As of December 31, 2017		Gross				Impairment Charges(1)				Accumulated Amortization				Foreign Currency Translation				Net
Completed technology		$	172,431			$	(105	)		$	(115,371	)		$	333			$	57,288
Customer relationships			282,744				(1,406	)			(45,518	)			1,571				237,391
Patents, trademarks, trade names and other			110,523				—				(38,730	)			(74	)			71,719
		$	565,698			$	(1,511	)		$	(199,619	)		$	1,830			$	366,398

(1) In 2017, the Company recorded impairment charges of $1,511 related to the write-off of intangible assets as a result of the discontinuation of a product line and consolidation of two manufacturing plants.

Estimated Net Amortization Expense

Aggregate net amortization expense related to acquired intangible assets and unfavorable lease commitments for future years is:

Year		Amount
2019		$	40,073
2020		$	28,076
2021		$	20,206
2022		$	17,584
2023		$	17,220
Thereafter		$	138,693

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-Name Accounting Standards Codification
-Topic 350
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