Fair Value Measurements - Schedule of Impaired Long-lived Assets Carrying Value and Fair Value (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment Charge	$ 5.7		$ 9.4
Significant unobservable inputs (Level 3) | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value Prior to Impairment	10.8	$ 18.0	17.6	$ 18.0
Fair Value	3.8	1.7	6.3	1.7
Impairment Charge	7.0	16.3	11.3	16.3
Fixed Assets | Significant unobservable inputs (Level 3) | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value Prior to Impairment	8.8	13.4	14.2	13.4
Fair Value	3.1	1.5	4.8	1.5
Impairment Charge	5.7	11.9	9.4	11.9
Leasing rights | Lease Rights | Significant unobservable inputs (Level 3) | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value Prior to Impairment	2.0	3.6	3.4	3.6
Fair Value	0.7	0.2	1.5	0.2
Impairment Charge	$ 1.3	3.4	$ 1.9	3.4
Customer relationships | Lease Rights | Significant unobservable inputs (Level 3) | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Value Prior to Impairment		1.0		1.0
Fair Value		0.0		0.0
Impairment Charge		$ 1.0		$ 1.0