Intangible Assets Schedule of Intangible Assets (Tables)

6 Months Ended

Jun. 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:

	June 30, 2013							December 31, 2012
	Gross Assets		Accumulated Amortization			Net		Gross Assets		Accumulated Amortization			Net
	(in thousands)
Core-developed technology	$	420,055	$	(338,145	)	$	81,910	$	407,024	$	(332,763	)	$	74,261
Customer contracts and relationships	281,644		(159,231		)	122,413		292,252		(154,890		)	137,362
Trademarks and trade names	71,356		(64,897		)	6,459		72,770		(65,090		)	7,680
Other	11,091		(11,024		)	67		11,094		(11,026		)	68
Total intangible assets subject to amortization	784,146		(573,297		)	210,849		783,140		(563,769		)	219,371
In-process research and development	—					—		19,400					19,400
Total intangible assets	$	784,146	$	(573,297	)	$	210,849	$	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:

	Six Months Ended June 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	(16,894		)	(13,835		)
Ending balance, intangible assets, gross	$	784,146		$	778,759

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 June 30, 2013)	$	20,734
2014	43,434
2015	34,800
2016	27,345
2017	20,314
Beyond 2017	64,222
Total intangible assets, net	$	210,849