Business Segments (Wholesale Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Business segment information
Net sales to external customers	$ 795,902	$ 784,678	$ 1,496,562	$ 1,476,420
Income (loss) from operations	202,500	214,581	190,005	223,682
Total assets for reportable segments	1,408,151		1,408,151		$ 1,169,933
Reportable segments
Business segment information
Total assets for reportable segments	896,253		896,253		698,174
UGG wholesale
Business segment information
Net sales to external customers	399,566	401,702	810,647	815,694
Income (loss) from operations	123,795	135,893	237,209	261,614
Total assets for reportable segments	395,924		395,924		194,720
Teva wholesale
Business segment information
Net sales to external customers	12,697	12,373	63,866	65,641
Income (loss) from operations	(214)	(660)	5,218	3,812
Total assets for reportable segments	54,257		54,257		77,423
Sanuk wholesale
Business segment information
Net sales to external customers	13,472	17,763	55,309	66,047
Income (loss) from operations	2,938	(282)	8,263	9,307
Total assets for reportable segments	194,985		194,985		224,974
Other wholesale
Business segment information
Net sales to external customers	18,841	13,211	68,379	47,153
Income (loss) from operations	(963)	(4,522)	(4,680)	(9,104)
Total assets for reportable segments	59,788		59,788		53,634
Direct-to-Consumer
Business segment information
Net sales to external customers	351,326	339,629	498,361	481,885
Income (loss) from operations	120,659	141,308	95,847	127,235
Total assets for reportable segments	191,299		191,299		$ 147,423
Unallocated to segments
Business segment information
Income (loss) from operations	$ (43,715)	$ (57,156)	$ (151,852)	$ (169,182)