Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Deferred Tax Liabilities, Goodwill and Intangible Assets [Abstract]

Schedule of Acquired Intangible Assets by Major Asset Class

The following sets forth the acquired intangible assets by major asset class as of December 31, 2011 and December 31, 2010:

		2011					2010
(in thousands)	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Amortized Intangible Assets:
Patent and license rights	11.8	$	294,854	$	(115,310	)	$	289,199	$	(88,275	)
Developed technology	10.3	605,847		(210,022		)	501,287		(157,838		)
Customer base, trademarks, in-process R&D and non-compete agreements	10.6	336,216		(92,098		)	275,167		(66,213		)
		$	1,236,917	$	(417,430	)	$	1,065,653	$	(312,326	)
Unamortized Intangible Assets:
Goodwill		$	1,733,722				$	1,352,281

Schedule of Amortization of Intangibles for the Next Five Years

Amortization of intangibles for the next five years is expected to be approximately:

(in thousands)	Amortization
Years ended December 31:
2012	$	121,763
2013	$	116,004
2014	$	115,021
2015	$	113,826
2016	$	110,979

Changes in the Carrying Amount of Goodwill, by Segment

The changes in the carrying amount of goodwill for the years ended December 31, 2011 and 2010 are as follows:

(in thousands)	Total
BALANCE AT DECEMBER 31, 2009	$	1,337,064
Earn-out and milestone payments	2,983
Purchase adjustments	579
Effect of foreign currency translation	11,655
BALANCE AT DECEMBER 31, 2010	$	1,352,281
Goodwill acquired during the year	402,575
Earn-out and milestone payments	1,122
Purchase adjustments	615
Effect of foreign currency translation	(22,871		)
BALANCE AT DECEMBER 31, 2011	$	1,733,722