Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Net income (loss)	$ 139,713	$ 141,515	$ (95,533)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(925)	(1,621)	(3,063)
Derivative financial instruments:
Change in net unrealized amount	(3,646)	(21,508)	(982)
Amount reclassified into net income	1,332	1,955	859
Defined benefit plans:
Changes in unrecognized net actuarial losses and unrecognized transition cost	(6,240)	(11,450)	(460)
Amortization of actuarial losses and transition cost	2,106	939	796
Total other comprehensive losses	(7,373)	(31,685)	(2,850)
Comprehensive income (loss)	$ 132,340	$ 109,830	$ (98,383)