Goodwill and Other Identifiable Intangible Assets, Net (Tables)

9 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortizable Identifiable Intangible Assets

Amortizable identifiable intangible assets were (in thousands):



	June 30, 2016							September 30, 2015
	Gross carrying amount		Accum. amort.			Net		Gross carrying amount		Accum. amort.			Net
Purchased and core technology	$	46,772	$	(45,050	)	$	1,722	$	45,449	$	(45,424	)	$	25
License agreements	18		(4		)	14		18		(4		)	14
Patents and trademarks	11,689		(10,858		)	831		11,377		(10,385		)	992
Customer relationships	17,559		(15,703		)	1,856		17,090		(15,473		)	1,617
Total	$	76,038	$	(71,615	)	$	4,423	$	73,934	$	(71,286	)	$	2,648

Schedule of Estimated Future Amortization Expense Related to Identifiable Intangible Assets

Estimated amortization expense related to identifiable intangible assets for the remainder of fiscal 2016 and the five succeeding fiscal years is (in thousands):



2016 (three months)	$	396
2017	1,376
2018	910
2019	730
2020	681
2021	131

Schedule of Changes in Carrying Amount of Goodwill

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



	Nine months ended June 30,
	2016			2015
Beginning balance, October 1	$	100,183		$	101,484
Acquisition of Bluenica	10,985			—
Foreign currency translation adjustment	(1,288		)	(901		)
Ending balance, June 30	$	109,880		$	100,583