Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Revenue
Revenue	$ 232,209	$ 194,668	$ 668,436	$ 580,153
Cost of Sales
Total cost of sales	147,106	118,384	417,678	351,116
Gross profit	85,103	76,284	250,758	229,037
Operating expenses
Selling and marketing	33,321	32,171	98,805	94,796
General and administrative	20,621	19,081	63,804	58,635
Research and development	8,160	8,768	23,008	26,235
Total operating expenses	62,102	60,020	185,617	179,666
Income from operations	23,001	16,264	65,141	49,371
Interest expense, net	(6,687)	(6,249)	(20,873)	(19,761)
Other income (expense), net	(124)	30	195	81
Income before income taxes	16,190	10,045	44,463	29,691
Income tax provision (benefit)	2,605	1,066	6,217	(20,877)
Net income	$ 13,585	$ 8,979	$ 38,246	$ 50,568
Basic
Earnings per share (in dollars per share)	$ 0.70	$ 0.47	$ 1.99	$ 2.64
Weighted average common shares outstanding (in shares)	19,297	19,174	19,255	19,149
Diluted
Earnings per share (in dollars per share)	$ 0.70	$ 0.47	$ 1.97	$ 2.62
Weighted average common shares outstanding (in shares)	19,520	19,305	19,436	19,269
Dividends declared per share (in dollars per share)	$ 0.30	$ 0.30	$ 0.90	$ 0.90
Product
Revenue
Revenue	$ 205,528	$ 168,651	$ 587,297	$ 503,345
Cost of Sales
Cost of goods and services sold	130,514	103,182	368,260	304,809
Service
Revenue
Revenue	26,681	26,017	81,139	76,808
Cost of Sales
Cost of goods and services sold	$ 16,592	$ 15,202	$ 49,418	$ 46,307