Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2012

Gross Carrying Amount of Goodwill

The gross carrying amount of goodwill was as follows (in thousands):

	June 30,		December 31,
	2012		2011
Goodwill	$	446,236	$	38,213

Gross Carrying Amounts and Net Book Values of Intangible Assets

The gross carrying amounts and net book values of our intangible assets were as follows (in thousands):

	June 30, 2012								December 31, 2011
	Remaining Weighted- Average Useful Life (In years)		Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Acquired developed technologies		12.4	$	956,946	$	(64,716)	$	892,230	$	49,400	$	(35,634)	$	13,766
Trademarks		2.5		2,600		(1,917)		683		2,600		(1,781)		819
Total finite-lived intangible assets				959,546		(66,633)		892,913		52,000		(37,415)		14,585
Acquired IPR&D assets				34,496		-		34,496		-		-		-
Total intangible assets			$	994,042	$	(66,633)	$	927,409	$	52,000	$	(37,415)	$	14,585

Estimated Future Amortization Costs

Based on finite-lived intangible assets recorded as of June 30, 2012, and assuming the underlying assets will not be impaired in the future and that we will not change the expected lives of the assets, future amortization costs were estimated as follows (in thousands):

Year Ending December 31,	Estimated   Amortization   Expense
2012 (remainder)	$	45,247
2013		87,313
2014		82,140
2015		75,190
2016		69,118
Thereafter		533,905
Total	$	892,913