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Summary of Significant Accounting Policies (Details Textual) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 29, 2018 USD ($) Customer	Sep. 29, 2018 USD ($) Customer	Mar. 31, 2018 USD ($)	Apr. 01, 2018 USD ($)	Sep. 30, 2017 USD ($)
Summary of Significant Accounting Policies (Textual) [Abstract]
Deferred income	$ 20.0	$ 20.0	$ 31.7
Amount of revenue recognized that was previously reported as deferred income	$ 1.6	$ 14.9
Deferred income, impact of adoption of ASU 2014-09				$ (6.1)
Wholesale customer payment terms		30 to 120 days
Number Of Key Department Store Customers | Customer	3	3
Inventory, Net	$ 994.6	$ 994.6	$ 761.3		$ 864.6
Total Net Revenue [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Contribution of Key Wholesale Customers			19.00%
Accounts Receivable [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Contribution of Key Wholesale Customers		34.00%
Macy's [Member] | Total Net Revenue [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Contribution of Key Wholesale Customers			8.00%

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Increase (decrease) to opening balance of deferred revenue resulting from adoption of ASU 2014-09

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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