Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions - Additional Information (Details) - USD ($) $ in Millions				3 Months Ended		9 Months Ended	10 Months Ended	12 Months Ended
	May 31, 2016	Jan. 01, 2016	Jun. 28, 2015	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2016	Apr. 01, 2017	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Business Acquisition [Line Items]
Goodwill					$ 23.2		$ 119.7	$ 119.7	$ 23.2
Gain on acquisition								0.0	3.7	$ 0.0
Retail
Business Acquisition [Line Items]
Goodwill					8.0		91.9	91.9	8.0
Wholesale
Business Acquisition [Line Items]
Goodwill					13.3		25.9	$ 25.9	$ 13.3
Customer relationships
Business Acquisition [Line Items]
Weighted average useful life								6 years 6 months 2 days
Michael Kors (HK) Limited
Business Acquisition [Line Items]
Voting interest acquired (as a percent)	100.00%
Fair value of acquisition consideration	$ 500.0
Goodwill	$ 96.5
Revenue of acquiree since acquisition date							212.4
Loss of acquiree since acquisition date							$ 10.6
Acquisition-related costs				$ 11.3		$ 11.3
Michael Kors (HK) Limited \| Customer relationships
Business Acquisition [Line Items]
Weighted average useful life	10 years
MK Korea Acquisition
Business Acquisition [Line Items]
Fair value of acquisition consideration		$ 3.6
Gain on acquisition		$ 3.7			$ 3.7
MK Korea Acquisition \| Customer relationships
Business Acquisition [Line Items]
Weighted average useful life		5 years
MK Panama Acquisition
Business Acquisition [Line Items]
Voting interest acquired (as a percent)			75.00%
Fair value of acquisition consideration			$ 3.0
Goodwill			9.2
Fair value of consideration provided			18.5
Business combination, liabilities eliminated			15.5
MK Panama Acquisition \| Retail
Business Acquisition [Line Items]
Goodwill			8.0
MK Panama Acquisition \| Wholesale
Business Acquisition [Line Items]
Goodwill			$ 1.2
MK Panama Acquisition \| Customer relationships
Business Acquisition [Line Items]
Weighted average useful life			10 years