Intangible Assets Schedule of Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Intangible Assets [Abstract]

Schedule of Intangible Assets by Major Class [Table Text Block]

The gross carrying amount and accumulated amortization of our intangible assets, other than goodwill, are as follows:

	September 30, 2013							December 31, 2012
	Gross Assets		Accumulated Amortization			Net		Gross Assets		Accumulated Amortization			Net
	(in thousands)
Core-developed technology	$	426,043	$	(348,292	)	$	77,751	$	407,024	$	(332,763	)	$	74,261
Customer contracts and relationships	288,347		(167,650		)	120,697		292,252		(154,890		)	137,362
Trademarks and trade names	72,559		(66,445		)	6,114		72,770		(65,090		)	7,680
Other	11,091		(11,023		)	68		11,094		(11,026		)	68
Total intangible assets subject to amortization	798,040		(593,410		)	204,630		783,140		(563,769		)	219,371
In-process research and development	—					—		19,400					19,400
Total intangible assets	$	798,040	$	(593,410	)	$	204,630	$	802,540	$	(563,769	)	$	238,771

Summary of Intangible Asset Account Activity [Table Text Block]

A summary of the intangible asset account activity is as follows:

	Nine Months Ended September 30,
	2013			2012
	(in thousands)
Beginning balance, intangible assets, gross	$	802,540		$	749,194
Intangible assets acquired	(1,500		)	43,400
Effect of change in exchange rates	(3,000		)	1,220
Ending balance, intangible assets, gross	$	798,040		$	793,814

Schedule of Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated future annual amortization expense is as follows:

Years ending December 31,	Estimated Annual Amortization
	(in thousands)
2013 (amount remaining at September 30, 2013)	$	10,598
2014	44,189
2015	35,440
2016	27,869
2017	20,718
Beyond 2017	65,816
Total intangible assets, net	$	204,630