Segment Information - Additional Information (Details) $ in Millions		3 Months Ended		6 Months Ended	9 Months Ended
		Dec. 30, 2017 USD ($) Segment segment	Dec. 31, 2016 USD ($) Store	Sep. 30, 2017 segment	Dec. 30, 2017 USD ($) Segment	Dec. 31, 2016 USD ($) Store
Segment Reporting Information [Line Items]
Number of operating segments | segment		4		3
Number of reportable segments | Segment		4			4
Asset impairment charges		$ 2.6	$ 0.5		$ 18.9	$ 5.4
Restructuring and other charges	[1]	28.0	$ 0.0		51.3	11.3
Impairment of long-lived assets						$ 5.4
Number of stores impaired | Store			10			10
MK Retail
Segment Reporting Information [Line Items]
Asset impairment charges		2.6			18.9
Impairment of long-lived assets		$ 2.6			$ 14.5	$ 4.9
MK Wholesale
Segment Reporting Information [Line Items]
Impairment of long-lived assets			$ 0.5
Fixed assets
Segment Reporting Information [Line Items]
Impairment of long-lived assets						4.9
Fixed assets | MK Wholesale
Segment Reporting Information [Line Items]
Impairment of long-lived assets						$ 0.5

[1] Restructuring and other charges includes store closure costs recorded in connection with the Retail Fleet Optimization Plan, as well as transaction and transition costs recorded in connection with the acquisitions of Jimmy Choo Group Limited (formerly known as Jimmy Choo PLC) and Michael Kors (HK) Limited and Subsidiaries (see Note 3 and Note 8).