Acquisition of Donna Karan International (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Jan. 31, 2017	Dec. 01, 2016	Apr. 30, 2016
Business Acquisition [Line Items]
Goodwill	$ 266,901	$ 269,262	$ 220,600	$ 50,406
Donna Karan International Inc. ("DKI")
Business Acquisition [Line Items]
Cash and cash equivalents			44,375
Accounts receivable			13,235
Inventories			10,933
Prepaid expenses & other current assets			19,533
Property, plant and equipment			15,760
Goodwill			217,947
Tradenames			370,000
Other intangibles			40,000
Other long-term assets			2,703
Total assets acquired			734,486
Accounts payable			(18,734)
Accrued expense			(38,900)
Income taxes payable			(3,443)
Other long-term liabilities			(3,631)
Total liabilities assumed			(64,708)
Total fair value of acquisition consideration (net of $40 million imputed debt discount)			$ 669,778