CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Revenue
Products	$ 142,184	$ 122,114
Services	47,144	37,841
Total revenue	189,328	159,955
Cost of revenue
Products	84,177	75,679
Services	29,936	27,333
Total cost of revenue	114,113	103,012
Gross profit	75,215	56,943
Operating expenses
Research and development	13,200	10,845
Selling, general and administrative	41,175	31,962
Restructuring charges		975
Total operating expenses	54,375	43,782
Operating income	20,840	13,161
Interest income	149	68
Interest expense	(2,181)	(96)
Gain on settlement of equity method investment		1,847
Other expenses, net	(1,652)	(251)
Income before income taxes and earnings of equity method investment	17,156	14,729
Income tax provision	2,850	2,800
Income before equity in earnings of equity method investment	14,306	11,929
Equity in earnings of equity method investment	2,180	1,942
Net income	$ 16,486	$ 13,871
Basic net income per share (in dollars per share)	$ 0.23	$ 0.20
Diluted net income per share (in dollars per share)	0.23	0.20
Dividend declared per share (in dollars per share)	$ 0.10	$ 0.10
Weighted-average shares used in computing net income per share:
Basic (in shares)	70,183	69,181
Diluted (in shares)	70,864	69,870