XML 47 R33.htm IDEA: XBRL DOCUMENT

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets

Schedule of changes in goodwill

		Gross carrying			Accumulated
		amount			impairment			Net amount
		(in thousands)
Balance at December 31, 2015 and 2016		$	238,108		$	123,200		$	114,908
Acquisition		192,223			—			192,223

Balance at December 31, 2017		$	430,331		$	123,200		$	307,131

Schedule of intangible assets

				December 31, 2017									December 31, 2016
		Weighted					Accumulated									Accumulated
		Average Remaining		Gross			Amortization						Gross			Amortization
		Amortization		Carrying			and			Net			Carrying			and			Net
		Period		Amount			Impairment			Amount			Amount			Impairment			Amount
		(in years)		(in thousands)
Technology		8.0		$	307,588		$	133,121		$	174,467		$	149,198		$	113,904		$	35,294
Customer relationships		11.4		164,595			39,336			125,259			47,885			28,659			19,226
In-process R&D		—		43,340			—			43,340			—			—			—
Trademarks and tradenames		6.4		30,910			4,321			26,589			2,590			1,948			642
Indefinite-lived trademark		—		—			—			—			2,900			—			2,900
Other		2.0		3,686			3,498			188			2,026			1,710			316

Total		9.2		$	550,119		$	180,276		$	369,843		$	204,599		$	146,221		$	58,378

Schedule of estimated aggregate amortization expense, excluding in-process R&D for intangible assets with definite useful lives

		Amortization
		(in thousands)
2018		$	54,128
2019		57,071
2020		54,382
2021		40,959
2022		26,009
Thereafter		93,954

Total		$	326,503