Goodwill And Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill And Intangible Assets, Net [Abstract]

Changes In Carrying Amount Of Goodwill

	Licenses			Maintenance Services			Professional Services			Total
Balance as of December 31, 2011	$	542,243		$	307,881		$	8,320		$	858,444
Acquisitions		—			3,817			—			3,817
Adjustments		(59	)		(94	)		(5	)		(158	)
Balance as of March 31, 2012	$	542,184		$	311,604		$	8,315		$	862,103

Components Of Intangible Assets, Net

	March 31, 2012							December 31, 2011
	Gross Carrying Amount		Accumulated Amortization and Impairments			Net		Gross Carrying Amount		Accumulated Amortization and Impairments			Net
Acquired technology and IPR&D (1)	$	247,654	$	(165,042	)	$	82,612	$	244,680	$	(157,944	)	$	86,736
Customer relationships		124,018		(75,126	)		48,892		122,918		(67,193	)		55,725
Non-compete agreements		15,268		(14,058	)		1,210		15,068		(13,896	)		1,172
Trademarks and trade names (2)		19,596		(13,043	)		6,553		19,596		(12,843	)		6,753
	$	406,536	$	(267,269	)	$	139,267	$	402,262	$	(251,876	)	$	150,386

(1) IPR&D projects were identified and valued related to our acquisitions. These projects are continually assessed for impairment. Upon completion, these projects will be amortized over their estimated useful life.

(2) Trademarks and trade names include $0.8 million in trade names related to our acquisition of PacketTrap that have an indefinite useful life, and as such are not being amortized.

Estimated Annual Amortization Expense Related To Amortizing Intangible Assets

	Estimated Annual Amortization Expense
2012 (remaining 3 quarters)	$	31,116
2013		29,872
2014		27,295
2015		18,691
2016 and thereafter		31,493
Total accumulated amortization	$	138,467