Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Restructuring Cost and Reserve [Line Items]
Proceeds from sale of property		$ 20.0	$ 20.8	$ 20.0
Fiscal 2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges	$ 4.0	20.2	20.5	39.0
Cash-related Restructuring Charges, Cost Incurred to Date	89.9		89.9
Non-cash charges	3.0	14.8	11.1	20.6
Non-cash Charges, Cost Incurred to Date	39.0		39.0
Restructuring and non-cash charges	7.0	35.0	31.6	59.6
Restructuring and Related Cost, Cost Incurred to Date	128.9		128.9
Fiscal 2019 Restructuring Plan | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges	3.0	17.1	17.9	34.3
Cash-related Restructuring Charges, Cost Incurred to Date	78.1		78.1
Fiscal 2019 Restructuring Plan | Lease termination and store closure costs
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges	0.0	1.2	0.5	1.2
Cash-related Restructuring Charges, Cost Incurred to Date	2.3		2.3
Fiscal 2019 Restructuring Plan | Other cash charges
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges	1.0	1.9	2.1	3.5
Cash-related Restructuring Charges, Cost Incurred to Date	9.5		9.5
Fiscal 2019 Restructuring Plan | Impairment of assets
Restructuring Cost and Reserve [Line Items]
Non-cash charges	3.0	1.3	6.5	7.1
Non-cash Charges, Cost Incurred to Date	16.8		16.8
Fiscal 2019 Restructuring Plan | Inventory-related charges
Restructuring Cost and Reserve [Line Items]
Non-cash charges	0.0	1.9	1.0	1.9
Non-cash Charges, Cost Incurred to Date	7.0		7.0
Fiscal 2019 Restructuring Plan | Accelerated stock-based compensation expense
Restructuring Cost and Reserve [Line Items]
Non-cash charges	0.0	0.0	3.6	0.0
Non-cash Charges, Cost Incurred to Date	3.6		3.6
Fiscal 2019 Restructuring Plan | Loss on sale of property
Restructuring Cost and Reserve [Line Items]
Non-cash charges	0.0	11.6	0.0	11.6
Non-cash Charges, Cost Incurred to Date	$ 11.6		11.6
Other Restructuring Plans
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges		2.8	0.0	11.1
Non-cash charges		3.6		3.6
Restructuring and non-cash charges		6.4		14.7
Other Restructuring Plans | Severance and benefit costs
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges		0.1	0.0	6.6
Other Restructuring Plans | Lease termination and store closure costs
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges		2.1	0.0	3.7
Other Restructuring Plans | Other cash charges
Restructuring Cost and Reserve [Line Items]
Cash-related restructuring charges		0.6	$ 0.0	0.8
Other Restructuring Plans | Impairment of assets
Restructuring Cost and Reserve [Line Items]
Non-cash charges		0.4		0.4
Other Restructuring Plans | Inventory-related charges
Restructuring Cost and Reserve [Line Items]
Non-cash charges		1.2		1.2
Other Restructuring Plans | Other non-cash charges
Restructuring Cost and Reserve [Line Items]
Non-cash charges		$ 2.0		$ 2.0