Net Revenues by Type of License and Information by Geographic Region (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Licensing revenue	$ 50,212,000	$ 61,647,000	$ 98,761,000	$ 120,370,000
Type of Revenue [Extensible List]	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember
Operating income (loss)	$ (94,586,000)	$ 15,875,000	$ (79,050,000)	$ 49,489,000
International
Segment Reporting Information [Line Items]
Licensing revenue	$ 600,000		$ 2,600,000	$ 0
Type of Revenue [Extensible List]	us-gaap:LicenseMember		us-gaap:LicenseMember	us-gaap:LicenseMember
Operating Segments | Women's
Segment Reporting Information [Line Items]
Licensing revenue	$ 16,871,000	27,634,000	$ 33,469,000	$ 55,777,000
Operating income (loss)	(95,694,000)	23,349,000	(81,066,000)	49,630,000
Operating Segments | Men's
Segment Reporting Information [Line Items]
Licensing revenue	10,526,000	9,982,000	20,470,000	20,175,000
Operating income (loss)	664,000	(15,202,000)	6,538,000	(9,259,000)
Operating Segments | Home
Segment Reporting Information [Line Items]
Licensing revenue	6,961,000	7,824,000	13,473,000	15,161,000
Operating income (loss)	6,589,000	6,861,000	12,332,000	13,486,000
Operating Segments | International
Segment Reporting Information [Line Items]
Licensing revenue	15,854,000	16,207,000	31,349,000	29,257,000
Operating income (loss)	8,082,000	9,964,000	14,569,000	15,484,000
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	$ (14,227,000)	$ (9,097,000)	$ (31,423,000)	$ (19,852,000)