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).