Goodwill and Other Identifiable Intangible Assets, Net (Tables)

9 Months Ended

Jun. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortizable Identifiable Intangible Assets

Amortizable identifiable intangible assets were (in thousands):

	June 30, 2014							September 30, 2013
	Gross carrying amount		Accum. amort.			Net		Gross carrying amount		Accum. amort.			Net
Purchased and core technology	$	46,323	$	(45,299	)	$	1,024	$	45,960	$	(44,306	)	$	1,654
License agreements	2,440		(2,440		)	—		2,440		(2,440		)	—
Patents and trademarks	11,870		(9,824		)	2,046		11,322		(9,000		)	2,322
Customer relationships	19,185		(15,431		)	3,754		18,954		(14,130		)	4,824
Non-compete agreements	1,100		(367		)	733		1,100		(202		)	898
Order backlog	360		(360		)	—		360		(330		)	30
Total	$	81,278	$	(73,721	)	$	7,557	$	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 three months	$	810
2015	3,081
2016	1,697
2017	827
2018	482
2019	438

Schedule of Changes in Carrying Amount of Goodwill

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

	Nine months ended June 30,
	2014		2013
Beginning balance, October 1	$	103,569	$	86,209
Acquisition of Etherios, Inc.	—		17,120
Foreign currency translation adjustment	760		(718		)
Ending balance, June 30	$	104,329	$	102,611