Quarterly Summary of Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summarized unaudited quarterly financial data
Net sales	$ 617,264	$ 376,392	$ 174,436	$ 246,306	$ 603,852	$ 414,358	$ 154,222	$ 204,851	$ 1,414,398	$ 1,377,283	$ 1,000,989
Gross profit	285,994	159,293	73,579	113,288	307,752	202,853	65,912	102,478	632,154	678,995	502,938
Net income attributable to Deckers Outdoor Corporation	$ 98,057	$ 43,061	$ (20,139)	$ 7,887	$ 124,729	$ 62,484	$ (7,339)	$ 19,178	$ 128,866	$ 199,052	$ 158,235
Net income per share attributable to Deckers Outdoor Corporation common stockholders:
Basic (in dollars per share)	$ 2.81	$ 1.19	$ (0.53)	$ 0.20	$ 3.23	$ 1.62	$ (0.19)	$ 0.50	$ 3.49	$ 5.16	$ 4.10
Diluted (in dollars per share)	$ 2.77	$ 1.18	$ (0.53)	$ 0.20	$ 3.18	$ 1.59	$ (0.19)	$ 0.49	$ 3.45	$ 5.07	$ 4.03