Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and acquired intangible assets consisted of the following:



	September 30, 2015						September 30, 2014
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
	(in thousands)
Goodwill (not amortized)					$	1,069,041					$	1,012,527
Intangible assets with finite lives (amortized) (1):
Purchased software	$	284,257	$	174,887	$	109,370	$	278,012	$	162,259	$	115,753
Capitalized software	22,877		22,877		—		22,877		22,877		—
Customer lists and relationships	349,938		174,017		175,921		360,530		147,469		213,061
Trademarks and trade names	18,534		12,759		5,775		18,479		10,964		7,515
Other	3,946		3,711		235		4,117		3,573		544
	$	679,552	$	388,251	$	291,301	$	684,015	$	347,142	$	336,873
Total goodwill and acquired intangible assets					$	1,360,342					$	1,349,400

(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 9 years, 10 years, 10 years and 3 years, respectively.

Schedule Of Movements in Goodwill by Reportable Segment

Changes in goodwill presented by reportable segment were as follows:



	Software Products Segment			Services Segment			Total
	(in thousands)
Balance, October 1, 2013	$	720,548		$	48,547		$	769,095
Acquisition of ThingWorx	102,190			—			102,190
Acquisition of Atego	27,256			—			27,256
Acquisition of Axeda	126,034			4,409			130,443
Foreign currency translation	(16,260		)	(197		)	(16,457		)
Balance, September 30, 2014	$	959,768		$	52,759		$	1,012,527
Axeda adjustment of purchase price from escrow	(180		)	—			(180		)
Acquisition of ColdLight	85,288			—			85,288
Foreign currency translation adjustments	(28,463		)	(131		)	(28,594		)
Balance, September 30, 2015	$	1,016,413		$	52,628		$	1,069,041

Amortization Of Intangible Assets

The aggregate amortization expense for intangible assets with finite lives recorded for the years ended September 30, 2015, 2014 and 2013 was reflected in our Consolidated Statements of Operations as follows:



	Year ended September 30,
	2015		2014		2013
	(in thousands)
Amortization of acquired intangible assets	$	36,129	$	32,127	$	26,486
Cost of license and subscription revenue	19,402		18,112		18,586
Total amortization expense	$	55,531	$	50,239	$	45,072