Segment Information - Total Revenue (as Recognized Based on Country of Origin), and Long-Lived Assets by Geographic Location (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Mar. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Additions charged to expense	[1]	$ 18.2	$ 22.0	$ 29.5	$ 23.3
Impairment of long-lived assets		7.0	16.3	11.3	16.3
Total revenue		1,253.8	1,146.6	2,456.3	2,099.0
Long-lived assets, excluding goodwill		1,710.6		1,710.6		$ 1,818.9
The Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		792.7	751.9	1,510.9	1,386.0
Long-lived assets, excluding goodwill		311.6		311.6		327.3
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		289.2	270.7	591.0	471.9
Long-lived assets, excluding goodwill		965.4		965.4		1,050.3
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		171.9	124.0	354.4	241.1
Long-lived assets, excluding goodwill		433.6		433.6		441.3
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue		736.7	$ 694.0	1,405.0	$ 1,281.0
Long-lived assets, excluding goodwill		$ 286.0		$ 286.0		$ 303.3

[1] Restructuring and other charges includes store closure costs recorded in connection with the Retail Fleet Optimization Plan and other restructuring initiatives, transition costs recorded in connection with the acquisition of Jimmy Choo Group Limited and transaction and transition costs recorded in connection with the Company’s agreement to acquire Gianni Versace S.p.A. (see Note 1, Note 4 and Note 9).