Business Segments, Concentration of Business, and Credit Risk and Significant Customers (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014
Business segment information
Net sales to external customers	$ 211,469	$ 170,085
Income (loss) from operations:	(50,482)	(42,751)
Total assets for reportable segments	1,168,613		1,064,204
Reportable segments
Business segment information
Total assets for reportable segments	803,119		654,679
UGG wholesale
Business segment information
Net sales to external customers	74,193	62,366
Income (loss) from operations:	2,693	(510)
Total assets for reportable segments	333,116		153,341
Teva wholesale
Business segment information
Net sales to external customers	35,665	28,748
Income (loss) from operations:	4,782	2,149
Total assets for reportable segments	61,489		81,766
Sanuk wholesale
Business segment information
Net sales to external customers	32,329	27,786
Income (loss) from operations:	6,905	6,489
Total assets for reportable segments	219,127		214,627
Other wholesale
Business segment information
Net sales to external customers	11,825	7,978
Income (loss) from operations:	(4,011)	(2,489)
Total assets for reportable segments	40,344		41,281
eCommerce
Business segment information
Net sales to external customers	15,427	10,736
Income (loss) from operations:	809	1,669
Total assets for reportable segments	4,569		3,129
Retail stores
Business segment information
Net sales to external customers	42,030	32,471
Income (loss) from operations:	(15,851)	(9,818)
Total assets for reportable segments	144,474		160,535
Unallocated to Segments
Business segment information
Income (loss) from operations:	$ (45,809)	$ (40,241)