Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Sep. 30, 2023
Restructuring Cost and Reserve
Restructuring reserve	$ 9,978		$ 10,177
Restructuring	1,889	$ 1,078
2023 Plan
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost Remaining	10,400
Restructuring reserve	6,072
Restructuring	1,889
2022 Plan
Restructuring Cost and Reserve
Restructuring reserve	387
2020 Plan
Restructuring Cost and Reserve
Restructuring reserve	2,385
2018 Plan
Restructuring Cost and Reserve
Restructuring reserve	$ 1,134