Reportable Operating Segments (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($) segment	Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment									5
Net sales to external customers	$ 369,465	$ 760,345	$ 485,944	$ 174,393	$ 378,635	$ 795,902	$ 486,855	$ 213,805	$ 1,790,147	$ 1,875,197	$ 1,817,057
(Loss) income from operations	(30,873)	$ 53,250	$ 54,023	$ (78,319)	(27,878)	$ 202,500	$ 51,213	$ (63,708)	(1,919)	162,127	224,419
Depreciation and amortization									52,628	50,024	49,293
Capital expenditures									44,499	66,186	91,853
Total assets	1,191,780				1,278,068				1,191,780	1,278,068
Direct-to-Consumer
Segment Reporting Information [Line Items]
Number of reportable segments | segment								1
Unallocated to Segments
Segment Reporting Information [Line Items]
(Loss) income from operations									(226,162)	(215,492)	(220,786)
Depreciation and amortization									27,779	21,029	15,105
Capital expenditures									25,587	45,351	71,590
Reportable segments
Segment Reporting Information [Line Items]
Total assets	606,058				762,783				606,058	762,783
Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Net sales to external customers									826,355	918,102	903,926
(Loss) income from operations									213,407	246,990	269,489
Depreciation and amortization									3,167	2,254	5,029
Capital expenditures									3,444	1,458	246
Total assets	259,444				248,937				259,444	248,937
Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Net sales to external customers									103,694	121,239	116,931
(Loss) income from operations									10,045	17,692	13,320
Depreciation and amortization									24	54	94
Capital expenditures									0	0	51
Total assets	82,505				87,225				82,505	87,225
Reportable segments | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Net sales to external customers									77,552	90,719	102,690
(Loss) income from operations									(110,582)	15,565	21,914
Depreciation and amortization									5,018	6,556	6,969
Capital expenditures									0	881	487
Total assets	80,102				212,816				80,102	212,816
Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Net sales to external customers									116,206	100,820	76,152
(Loss) income from operations									1,571	(4,384)	(9,838)
Depreciation and amortization									971	1,101	931
Capital expenditures									191	51	351
Total assets	70,607				65,072				70,607	65,072
Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Net sales to external customers									666,340	644,317	617,358
(Loss) income from operations									109,802	101,756	150,320
Depreciation and amortization									15,669	19,030	21,165
Capital expenditures									15,277	18,445	$ 19,128
Total assets	$ 113,400				$ 148,733				$ 113,400	$ 148,733