CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Net sales:
Products	$ 131,743	$ 144,760
Services	208,941	189,917
Total net sales	340,684	334,677
Costs and expenses:
Products	91,573	104,612
Services	169,337	151,142
Selling, general and administrative expenses	65,347	63,758
Research and development	11,977	9,020
Amortization of purchased intangibles	7,959	9,355
Restructuring costs	1,495	891
Total costs and expenses	347,688	338,778
Operating loss	(7,004)	(4,101)
Other income (expense):
Interest and dividend income	485	247
Interest expense	(2,674)	(3,540)
Other income (expense), net	(76)	(547)
Loss before income taxes	(9,269)	(7,941)
Income tax provision (benefit)	517	(5,073)
Net loss	$ (9,786)	$ (2,868)
Net loss per share:
Basic (in dollars per share)	$ (0.36)	$ (0.11)
Diluted (in dollars per share)	$ (0.36)	$ (0.11)
Weighted average shares used in per share calculations:
Basic (in shares)	27,207	27,086
Diluted (in shares)	27,207	27,086