Goodwill And Acquired Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2011

Goodwill And Acquired Intangible Assets [Abstract]

Goodwill And Acquired Intangible Assets

	September 30, 2011						September 30, 2010
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
	(in thousands)
Goodwill (not amortized)					$	613,394					$	418,509
Intangible assets with finite lives (amortized) (1):
Purchased software	$	178,388	$	112,555		65,833	$	134,375	$	98,193		36,182
Capitalized software		22,877		22,877		—		22,877		22,877		—
Customer lists and relationships		227,961		75,050		152,911		148,753		60,490		88,263
Trademarks and trade names		11,035		7,967		3,068		8,274		5,196		3,078
Other		3,506		3,301		205		3,538		3,130		408
	$	443,767	$	221,750		222,017	$	317,817	$	189,886		127,931
Total goodwill and acquired intangible assets					$	835,411					$	546,440

(1) The weighted average useful lives of purchased software, customer lists and relationships, trademarks and trade names and other intangible assets with a remaining net book value are 8 years, 10 years, 6 years and 4 years, respectively.

Schedule Of Movements In Goodwill By Reportable Segment

	Software Products Segment			Services Segment			Total
	(in thousands)
Balance, October 1, 2009	$	410,585		$	17,683		$	428,268
Acquisitions		2,385			—			2,385
Foreign currency translation adjustments		(12,005	)		(139	)		(12,144	)
Balance, September 30, 2010	$	400,965		$	17,544		$	418,509
Acquisition of MKS		182,758			7,000			189,758
Acquisition of 4CS		9,071			442			9,513
Foreign currency translation adjustments		(4,351	)		(35	)		(4,386	)
Balance, September 30, 2011	$	588,443		$	24,951		$	613,394

Amortization Of Intangible Assets

	Year ended September 30,
	2011		2010		2009
	(in thousands)
Amortization of acquired intangible assets	$	18,319	$	15,605	$	15,620
Cost of license revenue		15,393		18,367		19,674
Cost of service revenue		—		—		8
Total amortization expense	$	33,712	$	33,972	$	35,302