Interim Condensed Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2018	Mar. 31, 2017	Mar. 30, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income including controlling interest	$ 70,765	$ 50,727	$ (10,713)	$ 104,301
Other comprehensive income:
Foreign currency translation adjustments, net of tax	4,264	4,445	5,482	(3,279)
Unrealized gains/(losses) on available-for-sale securities, net of tax	(1,559)	581	(3,152)	(1,438)
Comprehensive income	73,470	55,753	(8,383)	99,584
Less: comprehensive (income) attributable to controlling interest	(333)	(192)	(471)	(131)
Comprehensive income attributable to Dolby Laboratories, Inc.	$ 73,137	$ 55,561	$ (8,854)	$ 99,453