Business Segments, Concentration of Business, and Credit Risk and Significant Customers - Summary of Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2015 segment store	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting [Abstract]
Number of reportable segments in which other brands are included										1
Number of stores converted to partner retail stores										7
Business segment information
Net sales to external customers	$ 340,637	$ 784,678	$ 480,273	$ 211,469	$ 294,716	$ 736,048	$ 386,725	$ 170,085	$ 263,760	$ 1,817,057	$ 1,556,618	$ 1,414,398
Income (loss) from operations					(408)				2,652	224,419	207,897	186,948
Depreciation and amortization					10,569					49,293	41,439	33,367
Depreciation, Depletion and Amortization					10,538					49,150	41,370	33,420
Capital expenditures					17,620					91,853	79,830	61,602
Total assets	1,169,933				1,064,204	1,259,729				1,169,933	1,259,729
Reportable segments
Business segment information
Total assets	698,174				654,679	801,796				698,174	801,796	816,807
UGG wholesale
Business segment information
Net sales to external customers					83,271					903,926	818,377	819,256
Income (loss) from operations					13,595					269,489	224,738	206,039
Depreciation and amortization					137					5,029	641	622
Capital expenditures					119					246	313	314
Total assets	194,720				153,341	314,122				194,720	314,122	377,997
Teva wholesale
Business segment information
Net sales to external customers					45,283					116,931	109,334	108,591
Income (loss) from operations					6,425					13,320	9,166	9,228
Depreciation and amortization					33					94	641	515
Capital expenditures					0					51	63	326
Total assets	77,423				81,766	54,868				77,423	54,868	59,641
Sanuk wholesale
Business segment information
Net sales to external customers					28,793					102,690	94,420	89,804
Income (loss) from operations					7,530					21,914	20,591	14,398
Depreciation and amortization					1,769					6,969	7,761	8,838
Capital expenditures					2					487	91	448
Total assets	224,974				214,627	208,669				224,974	208,669	209,861
Other brands wholesale
Business segment information
Net sales to external customers					18,662					76,152	38,276	20,194
Income (loss) from operations					(758)					(9,838)	(9,807)	(4,523)
Depreciation and amortization					250					940	507	1,622
Capital expenditures					26					351	477	197
Total assets	53,634				41,281	34,315				53,634	34,315	29,446
eCommerce
Business segment information
Net sales to external customers					38,584					233,070	169,534	130,592
Income (loss) from operations					13,272					92,392	66,849	56,190
Depreciation and amortization					242					949	744	839
Capital expenditures					8					644	676	347
Total assets	4,485				3,129	7,331				4,485	7,331	5,058
Retail stores
Business segment information
Net sales to external customers					80,123					384,288	326,677	245,961
Income (loss) from operations					7,646					57,928	65,683	63,306
Depreciation and amortization					4,967					20,139	21,117	12,073
Capital expenditures					3,549					18,484	34,993	34,004
Total assets	142,938				160,535	182,491				142,938	182,491	134,804
Unallocated to Segments
Business segment information
Income (loss) from operations					(48,118)					(220,786)	(169,323)	(157,690)
Depreciation and amortization					3,140					15,030	9,959	8,911
Capital expenditures					$ 13,916					$ 71,590	$ 43,217	$ 25,966