Interim Condensed Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016
Revenue:
Products	$ 22,569	$ 20,638	$ 71,493	$ 65,510
Services	4,990	3,923	15,491	13,740
Total revenue	305,665	277,587	839,406	792,741
Cost of revenue:
Cost of products	14,910	14,098	46,618	47,114
Cost of services	4,504	3,903	12,823	11,795
Total cost of revenue	32,125	24,621	89,069	78,760
Gross margin	273,540	252,966	750,337	713,981
Operating expenses:
Research and development	59,631	54,977	175,490	160,393
Sales and marketing	73,480	74,234	220,275	220,503
General and administrative	44,497	42,570	129,290	129,130
Restructuring charges	0	(10)	0	1,245
Total operating expenses	177,608	171,771	525,055	511,271
Operating income	95,932	81,195	225,282	202,710
Other income/expense:
Interest income		1,464	6,511	4,011
Interest expense	(31)	(26)	(94)	(88)
Other income/(expense), net	(2,109)	(849)	(1,546)	(1,542)
Total other income	371	589	4,871	2,381
Income before income taxes	96,303	81,784	230,153	205,091
Provision for income taxes	(20,117)	(18,017)	(49,666)	(42,768)
Net income including controlling interest	76,186	63,767	180,487	162,323
Less: net (income) attributable to controlling interest	(143)	(139)	(480)	(396)
Net income attributable to Dolby Laboratories, Inc.	$ 76,043	$ 63,628	$ 180,007	$ 161,927
Net income per share:
Basic (in usd per share)	$ 0.75	$ 0.63	$ 1.77	$ 1.61
Diluted (in usd per share)	$ 0.73	$ 0.62	$ 1.73	$ 1.59
Weighted-average shares outstanding:
Basic (in shares)	101,905	100,533	101,725	100,578
Diluted (in shares)	104,222	102,677	103,986	101,979
Related party rent expense:
Included in operating expenses	$ 784	$ 778	$ 2,359	$ 2,315
Included in net income attributable to controlling interest	$ 176	$ 179	$ 526	$ 529
Common stock, dividends declared (in dollars per share)	$ 0.14	$ 0.12	$ 0.42	$ 0.36
Common Stock, Dividends, Per Share, Cash Paid	$ 0.14	$ 0.12	$ 0.42	$ 0.36