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Acquisitions - Additional Information (Details)				3 Months Ended									5 Months Ended	10 Months Ended	12 Months Ended
	Nov. 01, 2017 USD ($)	May 31, 2016 USD ($)	Jan. 01, 2016 USD ($)	Mar. 31, 2018 USD ($)	Dec. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($)	Apr. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 01, 2016 USD ($)	Jul. 02, 2016 USD ($)	Sep. 26, 2015 USD ($)	Mar. 31, 2018 USD ($)	Apr. 01, 2017 USD ($)	Mar. 31, 2018 USD ($)	Apr. 01, 2017 USD ($)	Apr. 02, 2016 USD ($)	Nov. 01, 2017 £ / shares
Business Acquisition [Line Items]
Total revenue				$ 1,179,500,000	$ 1,440,100,000	$ 1,146,600,000	$ 952,400,000	$ 1,064,800,000	$ 1,352,800,000	$ 1,088,200,000	$ 987,900,000				$ 4,718,600,000	$ 4,493,700,000	$ 4,712,100,000
Net loss from date of acquisition				$ (44,100,000)	$ (219,400,000)	$ (202,900,000)	(125,500,000)	$ 26,800,000	$ (271,300,000)	$ (160,900,000)	(147,100,000)				(591,900,000)	(552,500,000)	(839,100,000)
Gain on acquisition															0	0	3,700,000
Jimmy Choo
Business Acquisition [Line Items]
Total revenue													$ 222,600,000		222,600,000	0	$ 0
Net loss from date of acquisition													$ 14,500,000
Jimmy Cho PLC
Business Acquisition [Line Items]
Total transaction value in a business acquisition	$ 1,447,400,000
Acquisition-related costs															40,600,000
Consideration paid	1,181,200,000
Michael Kors (HK) Limited
Business Acquisition [Line Items]
Acquisition-related costs											$ 11,300,000					$ 11,300,000
Voting interest acquired (as a percent)		100.00%
Consideration paid		$ 500,000,000
Revenue of acquiree since acquisition date														$ 212,400,000	306,200,000
Income (loss) of acquiree since acquisition date														$ (10,600,000)	$ 13,500,000
MK Korea Acquisition
Business Acquisition [Line Items]
Consideration paid			$ 3,600,000
Gain on acquisition			$ 3,700,000
MK Panama Acquisition
Business Acquisition [Line Items]
Total transaction value in a business acquisition							$ 500,000					$ 18,500,000
Equity interest percentage in acquiree				75.00%								75.00%	75.00%		75.00%
Consideration paid												$ 3,000,000
Business combination, liabilities eliminated												$ 15,500,000
Unsecured Debt | Term Loan Facility
Business Acquisition [Line Items]
Aggregate principal amount	1,000,000,000.000
Subsidiaries | Michael Kors Bidco | Jimmy Cho PLC
Business Acquisition [Line Items]
Purchase price per share (in gbp per share) | £ / shares																		£ 2.30
Total transaction value in a business acquisition	$ 1,447,000,000

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