Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and acquired intangible assets consisted of the following:



	September 30, 2016						September 30, 2015
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
	(in thousands)
Goodwill (not amortized)					$	1,169,813					$	1,069,041
Intangible assets with finite lives (amortized) (1):
Purchased software	$	354,595	$	199,192	$	155,403	$	284,257	$	174,887	$	109,370
Capitalized software	22,877		22,877		—		22,877		22,877		—
Customer lists and relationships	355,698		206,515		149,183		349,938		174,017		175,921
Trademarks and trade names	19,007		13,323		5,684		18,534		12,759		5,775
Other	3,955		3,920		35		3,946		3,711		235
	$	756,132	$	445,827	$	310,305	$	679,552	$	388,251	$	291,301
Total goodwill and acquired intangible assets					$	1,480,118					$	1,360,342

(1) The weighted average useful lives of purchased software, capitalized 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, 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
Acquisition of Vuforia	23,316			—			23,316
Acquisition of Kepware	77,081			—			77,081
Foreign currency translation adjustments	228			(6		)	222
Balance, July 2, 2016 prior to reallocation	$	1,117,038		$	52,622		$	1,169,660
	Solutions Group			IoT Group			Professional Services			Total
	(in thousands)
Balance, July 2, 2016 after reallocation	$	1,050,013		$	90,053		$	29,594		$	1,169,660
Foreign currency translation adjustments	137			12			4			153
Balance, September 30, 2016	$	1,050,150		$	90,065		$	29,598		$	1,169,813

Amortization Of Intangible Assets

The aggregate amortization expense for intangible assets with finite lives recorded for the years ended September 30, 2016, 2015 and 2014 was reflected in our Consolidated Statements of Operations as follows:



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Amortization of acquired intangible assets	$	33,198	$	36,129	$	32,127
Cost of software revenue	24,604		19,402		18,112
Total amortization expense	$	57,802	$	55,531	$	50,239