Goodwill and Other Identifiable Intangible Assets, Net (Tables)

3 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortizable Identifiable Intangible Assets

Amortizable identifiable intangible assets were (in thousands):

	December 31, 2013							September 30, 2013
	Gross carrying amount		Accum. amort.			Net		Gross carrying amount		Accum. amort.			Net
Purchased and core technology	$	46,111	$	(44,662	)	$	1,449	$	45,960	$	(44,306	)	$	1,654
License agreements	2,440		(2,440		)	—		2,440		(2,440		)	—
Patents and trademarks	11,568		(9,268		)	2,300		11,322		(9,000		)	2,322
Customer relationships	19,062		(14,604		)	4,458		18,954		(14,130		)	4,824
Non-compete agreements	1,100		(257		)	843		1,100		(202		)	898
Order backlog	360		(360		)	—		360		(330		)	30
Total	$	80,641	$	(71,591	)	$	9,050	$	80,136	$	(70,408	)	$	9,728

Schedule of Estimated Amortization Expense Related to Identifiable Intangible Assets

Estimated amortization expense related to identifiable intangible assets for the remainder of fiscal 2014 and the five succeeding fiscal years is (in thousands):

2014 nine months	$	2,658
2015	2,987
2016	1,531
2017	733
2018	482
2019	438

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill are (in thousands):

	Three months ended December 31,
	2013		2012
Beginning balance, October 1	$	103,569	$	86,209
Acquisition of Etherios, Inc.	—		17,120
Foreign currency translation adjustment	349		62
Ending balance, December 31	$	103,918	$	103,391