Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	12 Months Ended
	Sep. 24, 2021	Sep. 25, 2020	Sep. 27, 2019
Statement of Comprehensive Income [Abstract]
Net income including controlling interest	$ 317,823	$ 231,619	$ 255,505
Other comprehensive income/(loss):
Currency translation adjustments, net of tax	5,510	7,552	(10,166)
Unrealized gains/(losses) on investments, net of tax	(598)	(1,380)	5,146
Unrealized gains on cash flow hedges, net of tax	(4,091)	3,969	0
Other Comprehensive Income (Loss), Net of Tax	821	10,141	(5,020)
Comprehensive income	318,644	241,760	250,485
Less: comprehensive (income) attributable to controlling interest	(7,853)	(366)	(127)
Comprehensive income attributable to Dolby Laboratories, Inc.	$ 310,791	$ 241,394	$ 250,358