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Goodwill and Other Intangible Asset Data (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Amortized Intangible Assets

Intangible asset data are as follows (in thousands):


		As of December 31, 2014
		Gross Amount				Accumulated Amortization				Net Amount
Amortized intangible assets
Current technology		$	23,201			$	(16,499	)		$	6,702
Trade names			40,300				(1,967	)			38,333
Unpatented technology			280,000				(12,889	)			267,111
Patent and patent rights			244,569				(31,832	)			212,737
Customer relationships			532,591				(28,181	)			504,410

Total		$	1,120,661			$	(91,368	)		$	1,029,293

Amortization expense for the year ended December 31, 2014						$	54,096

		As of December 31, 2013
		Gross Amount				Accumulated Amortization				Net Amount
Amortized intangible assets
Current technology		$	23,778			$	(14,060	)		$	9,718
Trade names			300				(300	)			0
Patent and patent rights			29,569				(17,919	)			11,650
Customer relationships			52,593				(4,993	)			47,600

Total		$	106,240			$	(37,272	)		$	68,968

Amortization expense for the year ended December 31, 2013						$	7,383

Estimated Amortization Expense

Estimated amortization expense:
For the year ended December 31, 2015		$	244,376
For the year ended December 31, 2016			230,825
For the year ended December 31, 2017			212,023
For the year ended December 31, 2018			117,534
For the year ended December 31, 2019			90,441
Thereafter			134,094

Total		$	1,029,293

Changes in Net Carrying Value of Goodwill

Changes in the net carrying value amount of goodwill were as follows (in thousands):


		Total
Goodwill as of December 31, 2011			79,703
Acquisition – LaserBand			24,353
Impairment charge – 2012			(9,114	)

Goodwill as of December 31, 2012			94,942
Acquisition – Hart Systems			60,858

Goodwill as of December 31, 2013			155,800
Goodwill adjustment – Hart Systems 2014			(2,284	)
Acquisition – Enterprise			2,335,994

Goodwill as of December 31, 2014		$	2,489,510