Business Segments, Concentration of Business, and Credit Risk and Significant Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011 component segment	Dec. 31, 2010	Dec. 31, 2009
Business Segments, Concentration of Business, and Credit Risk and Significant Customers
Number of components of gross profit derived from sale to third parties									2
Number of reportable segments in which other brands are included									1
Business segment information
Net sales to external customers	$ 603,852	$ 414,358	$ 154,222	$ 204,851	$ 430,124	$ 277,879	$ 137,059	$ 155,927	$ 1,377,283	$ 1,000,989	$ 813,177
Income (loss) from operations									284,838	249,088	181,247
Depreciation and amortization									28,977	12,283	10,194
Capital expenditures									55,786	23,048	13,971
Total assets	1,146,196				808,994				1,146,196	808,994
Reportable segments
Business segment information
Total assets	724,210				299,338				724,210	299,338	203,511
UGG wholesale
Business segment information
Net sales to external customers									915,203	663,854	566,964
Income (loss) from operations									388,275	307,478	234,372
Depreciation and amortization									4,375	112	253
Capital expenditures									706	1,155	52
Total assets	347,213				194,028				347,213	194,028	130,493
Teva wholesale
Business segment information
Net sales to external customers									118,742	96,207	71,952
Income (loss) from operations									20,267	18,684	12,495
Depreciation and amortization									587	2,024	267
Capital expenditures									305	150	21
Total assets	61,893				49,849				61,893	49,849	31,105
Sanuk wholesale
Business segment information
Net sales to external customers									26,039
Income (loss) from operations									797
Depreciation and amortization									5,125
Capital expenditures									1,778
Total assets	217,936								217,936
Other brands wholesale
Business segment information
Net sales to external customers									21,801	23,476	19,644
Income (loss) from operations									(9,524)	(6,184)	(14,698)
Depreciation and amortization									533	1,125	1,013
Capital expenditures									198	226	1,260
Total assets	10,690				12,031				10,690	12,031	11,551
eCommerce
Business segment information
Net sales to external customers									106,498	91,808	75,666
Income (loss) from operations									24,255	23,536	21,073
Depreciation and amortization									540	232	210
Capital expenditures									1,419	1,030	304
Total assets	5,964				4,053				5,964	4,053	2,431
Retail stores
Business segment information
Net sales to external customers									189,000	125,644	78,951
Income (loss) from operations									31,461	27,310	16,838
Depreciation and amortization									6,082	3,018	2,365
Capital expenditures									22,297	11,296	6,498
Total assets	80,514				39,377				80,514	39,377	27,931
Unallocated to Segments
Business segment information
Income (loss) from operations									(170,693)	(121,736)	(88,833)
Depreciation and amortization									8,185	5,772	4,352
Capital expenditures									$ 29,083	$ 9,191	$ 5,836