Restructuring Charges (Tables)

12 Months Ended

Sep. 28, 2019

Restructuring and Related Activities [Abstract]

Charges Taken Related to Restructuring Actions

The following table displays charges taken related to restructuring actions in fiscal 2019, 2018 and 2017 and a rollforward of the charges to the accrued balances as of September 28, 2019:

	Fiscal 2019 Actions		Fiscal 2018 Actions			Fiscal 2017 Actions		Other		Total
Restructuring Charges
Fiscal 2017 charges:
Workforce reductions	$	—	$	—		$	8.5	$	—	$	8.5
Facility closure costs	—		—			—		4.8		4.8
Fiscal 2017 restructuring charges	$	—	$	—		$	8.5	$	4.8	$	13.3
Fiscal 2018 charges:
Workforce reductions	$	—	$	11.7		$	—	$	—	$	11.7
Facility closure costs	—		0.9			—		1.6		2.5
Fiscal 2018 restructuring charges	$	—	$	12.6		$	—	$	1.6	$	14.2
Fiscal 2019 charges:
Workforce reductions	$	4.0	$	1.4		$	—	$	—	$	5.4
Facility closure costs	—		(0.2		)	—		1.4		1.2
Fiscal 2019 restructuring charges	$	4.0	$	1.2		$	—	$	1.4	$	6.6

Charges Taken Related to Accrued Restructuring Actions

	Fiscal 2019 Actions			Fiscal 2018 Actions			Fiscal 2017 Actions			Previous Other Charges			Total
Rollforward of Accrued Restructuring
Balance as of September 24, 2016	$	—		$	—		$	—		$	6.3		$	6.3
Fiscal 2017 restructuring charges	$	—		$	—		$	8.5		$	4.8		$	13.3
Severance payments	—			—			(1.0		)	(5.6		)	(6.6		)
Other payments	—			—			—			(1.5		)	(1.5		)
Balance as of September 30, 2017	$	—		$	—		$	7.5		$	4.0		$	11.5
Fiscal 2018 restructuring charges	$	—		$	12.6		$	—		$	1.6		$	14.2
Stock-based compensation	—			(1.3		)	—			—			(1.3		)
Severance payments and adjustments	—			(6.8		)	(6.7		)	(0.2		)	(13.7		)
Other payments	—			(0.2		)	—			(1.4		)	(1.6		)
Balance as of September 29, 2018	$	—		$	4.3		$	0.8		$	4.0		$	9.1
Fiscal 2019 restructuring charges	$	4.0		$	1.2		$	—		$	1.4		$	6.6
Severance payments and adjustments	(3.0		)	(3.9		)	(0.8		)	—			(7.7		)
Other payments	—			(0.5		)	—			(1.6		)	(2.1		)
Balance as of September 29, 2018	$	1.0		$	1.1		$	—		$	3.8		$	5.9