Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2013	Mar. 30, 2012	Mar. 29, 2013	Mar. 30, 2012
Revenue:
Licensing	$ 226,455	$ 227,849	$ 431,331	$ 428,273
Products	17,726	27,228	43,224	53,628
Services	5,165	7,682	11,393	15,036
Total revenue	249,346	262,759	485,948	496,937
Cost of revenue:
Cost of licensing	6,409	3,303	9,489	6,631
Cost of products	13,206	17,635	31,695	31,523
Cost of services	3,668	2,654	7,704	5,848
Total cost of revenue	23,283	23,592	48,888	44,002
Gross margin	226,063	239,167	437,060	452,935
Operating expenses:
Research and development	41,948	34,236	84,384	67,062
Sales and marketing	58,130	45,694	116,551	89,510
General and administrative	41,803	37,281	84,911	72,746
Restructuring charges, net	0	910	0	1,278
Total operating expenses	141,881	118,121	285,846	230,596
Operating income	84,182	121,046	151,214	222,339
Interest income	904	1,414	2,243	3,151
Interest expense	(402)	(5)	(427)	(31)
Other income, net	188	60	901	260
Income before provision for income taxes	84,872	122,515	153,931	225,719
Provision for income taxes	(22,633)	(34,198)	(40,215)	(64,036)
Net income including controlling interest	62,239	88,317	113,716	161,683
Less: net income attributable to controlling interest	(328)	(197)	(456)	(404)
Net Income Attributable to Dolby Laboratories, Inc.	61,911	88,120	113,260	161,279
Net income per share:
Basic	$ 0.61	$ 0.81	$ 1.11	$ 1.48
Diluted	$ 0.60	$ 0.81	$ 1.10	$ 1.48
Weighted-average shares outstanding:
Basic	101,638	108,415	102,000	108,650
Diluted	102,680	109,170	102,980	109,242
Related party rent expense included in operating expenses	343	343	686	686
Related party rent expense included in net income attributable to controlling interest	$ 904	$ 632	$ 1,636	$ 1,386