Interim Condensed Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Mar. 29, 2019	Mar. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income including controlling interest	$ 73,575	$ 65,350	$ 171,933	$ 12,192
Other comprehensive income:
Foreign currency translation adjustments, net of tax	2,015	4,264	(1,713)	5,482
Unrealized gains/(losses) on available-for-sale securities, net of tax	2,098	(1,559)	2,868	(3,152)
Comprehensive income	77,688	68,055	173,088	14,522
Less: comprehensive (income) attributable to controlling interest	(292)	(333)	(280)	(471)
Comprehensive income attributable to Dolby Laboratories, Inc.	$ 77,396	$ 67,722	$ 172,808	$ 14,051