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Summary of Significant Accounting Policies - Additional Information (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2018 USD ($) | Dec. 30, 2017 USD ($) | Sep. 30, 2017 USD ($) | Mar. 31, 2018 USD ($) shares | Apr. 01, 2017 USD ($) shares | Apr. 02, 2016 USD ($) shares | Jul. 25, 2017 GBP (£)
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring and other charges | $ 44,300,000 | $ 2,400,000 | $ 5,900,000 | $ 102,100,000 | [1] | $ 11,300,000 | [1] | $ 0 | [1] |
Reclassification of transaction and transition costs out of SG&A into Restructuring |  |  |  | 1,766,800,000 |  | 1,541,200,000 |  | 1,428,000,000 |  |
Advertising and marketing expense |  |  |  | 167,100,000 |  | 118,700,000 |  | 103,900,000 |  |
Cooperative advertising expenses |  |  |  | 6,300,000 |  | 5,400,000 |  | 7,400,000 |  |
Shipping and handling costs |  |  |  | 107,600,000 |  | 102,100,000 |  | 98,600,000 |  |
Credit card receivables | 21,200,000 |  |  | 21,200,000 |  | 13,900,000 |  |  |  |
Restricted cash | 300,000 |  |  | 300,000 |  | 1,900,000 |  |  |  |
Goodwill impairment charges |  |  |  | $ 0 |  | 0 |  | $ 0 |  |
Proceeds from insurance settlement |  |  |  |  |  | $ 3,800,000 |  |  |  |
Anti-dilutive securities excluded from computation of earning per share (in shares) | shares |  |  |  | 1,662,889 |  | 2,034,658 |  | 2,255,271 |  |
Excess tax benefits from share-based compensation |  |  |  | $ 7,300,000 |  |  |  |  |  |
ASU 2016-09 |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Cash flows related to excess tax benefits reclassified to operating activities |  |  |  |  |  | $ 6,600,000 |  | $ 21,100,000 |  |
Cash flows related to excess tax benefits reclassified out of financing activities |  |  |  |  |  | (6,600,000) |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Forward contracts term, maximum |  |  |  | 12 months |  |  |  |  |  |
Trademarks |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization period |  |  |  | 20 years |  |  |  |  |  |
Customer relationships | Minimum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization period |  |  |  | 5 years |  |  |  |  |  |
Customer relationships | Maximum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization period |  |  |  | 18 years |  |  |  |  |  |
Equipment, furniture and fixtures | Minimum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 5 years |  |  |  |  |  |
Equipment, furniture and fixtures | Maximum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 7 years |  |  |  |  |  |
Computer hardware and software | Minimum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 3 years |  |  |  |  |  |
Computer hardware and software | Maximum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 5 years |  |  |  |  |  |
In-store shops | Minimum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 3 years |  |  |  |  |  |
In-store shops | Maximum |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 4 years |  |  |  |  |  |
Software development |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Property, plant and equipment, useful life |  |  |  | 5 years |  |  |  |  |  |
Greater China business | Restatement Adjustment |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring and other charges |  |  |  |  |  | 11,300,000 |  |  |  |
Reclassification of transaction and transition costs out of SG&A into Restructuring |  |  |  |  |  | (11,300,000) |  |  |  |
Foreign Exchange Forward |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amounts | $ 161,700,000 |  |  | $ 161,700,000 |  | 167,500,000 |  |  |  |
Not Designated as Hedging Instrument | Foreign Exchange Forward |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Notional Amounts | £ |  |  |  |  |  |  |  |  |  | £ 1,115,000,000.000
Not Designated as Hedging Instrument | Foreign Currency Gain (Loss) | Foreign Exchange Forward |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Gain on derivative recognized |  |  |  | 3,400,000 |  | $ 2,600,000 |  | $ (2,100,000) |  |
Not Designated as Hedging Instrument | Foreign Currency Gain (Loss) | Foreign Exchange Forward | Jimmy Cho PLC |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Gain on derivative recognized |  |  |  | $ 4,700,000 |  |  |  |  |  |
[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 9).

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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