Restructuring (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024	Sep. 28, 2024
Restructuring Cost and Reserve
Restructuring reserve	$ 8,406		$ 8,406		$ 12,178
Restructuring	2,425	$ 6,750	6,209	$ 8,639
2024 Plan
Restructuring Cost and Reserve
Restructuring reserve	3,676		3,676
Restructuring			5,236
2023 Plan
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost Remaining	3,700		3,700
Restructuring reserve	3,853		3,853
Restructuring			973
2022 Plan
Restructuring Cost and Reserve
Restructuring reserve	176		176
2020 Plan
Restructuring Cost and Reserve
Restructuring reserve	80		80
2018 Plan
Restructuring Cost and Reserve
Restructuring reserve	$ 621		$ 621