Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ (8,708)	$ (3,099)	$ (421,828)	$ 53,201
Other comprehensive income (loss):
Translation adjustment, net of taxes	[1],[2]	8,183	2,762	(1,916)	(10,506)
Defined benefit pension plans, net of taxes	[1],[3]	(920)	(971)	690	(1,719)
Other comprehensive income (loss), net of tax	[1]	7,263	1,791	(1,226)	(12,225)
Comprehensive income (loss)		(1,445)	(1,308)	(423,054)	40,976
Translation adjustment, net of taxes		2,268	(535)	1,459	2,911
Defined benefit plans, tax benefits		$ (445)	$ 322	$ 230	$ 605

[1] Reclassification adjustments were not significant during the three and nine months ended July 4, 2020 and June 29, 2019.

[2] Tax expenses of $2,268 and $1,459 were provided on translation adjustments during the three and nine months ended July 4, 2020, respectively. Tax expenses (benefits) of $535 and $(2,911) were provided on translation adjustments during the three and nine months ended June 29, 2019, respectively.  

[3] Tax expenses (benefits) of $(445) and $230 were provided on changes in defined benefit pension plans for the three and nine months ended July 4, 2020, respectively. Tax benefits of $322 and $605 were provided on changes in defined benefit pension plans for the three and nine months ended June 29, 2019, respectively.