Intangible Assets Schedule of Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of Intangible Assets [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

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

	December 31, 2013							December 31, 2012
	Gross Assets		Accumulated Amortization			Net		Gross Assets		Accumulated Amortization			Net
	(in thousands)
Core-developed technology	$	428,890	$	(356,017	)	$	72,873	$	407,024	$	(332,763	)	$	74,261
Customer contracts and relationships	291,185		(173,952		)	117,233		292,252		(154,890		)	137,362
Trademarks and trade names	73,117		(67,449		)	5,668		72,770		(65,090		)	7,680
Other	11,089		(11,023		)	66		11,094		(11,026		)	68
Total intangible assets subject to amortization	804,281		(608,441		)	195,840		783,140		(563,769		)	219,371
In-process research and development	—					—		19,400					19,400
Total intangible assets	$	804,281	$	(608,441	)	$	195,840	$	802,540	$	(563,769	)	$	238,771

SummaryOfIntangibleAssetAccountActivity [Table Text Block]

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

	Year Ended December 31,
	2013			2012
	(in thousands)
Beginning balance, intangible assets, gross	$	802,540		$	749,194
Intangible assets acquired	(1,500		)	43,400
Assets no longer in use written-off	—			(100		)
Effect of change in exchange rates	3,241			10,046
Ending balance, intangible assets, gross	$	804,281		$	802,540

Schedule of Finite-Lived 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)
2014	$	44,542
2015	35,740
2016	28,113
2017	20,908
2018	14,776
Beyond 2018	51,761
Total intangible assets subject to amortization	$	195,840