Consolidated Condensed Statement of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Other comprehensive income (loss), net of tax:
Net earnings (loss)	$ (12,590)	$ 46,165	$ 87,182	$ 129,993
Foreign currency translation adjustment	2,032	(996)	147	(9,277)
Retirement liability adjustment	5,922	5,564	16,401	17,660
Change in accumulated income (loss) on derivatives	557	559	796	1,144
Other comprehensive income (loss), net of tax	8,511	5,127	17,344	9,527
Comprehensive income (loss)	$ (4,079)	$ 51,292	$ 104,526	$ 139,520