Net Income per Share Attributable to Deckers Outdoor Corporation Common Stockholders (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Reconciliations of basic to diluted weighted-average common shares outstanding
Weighted-average shares used in basic computation	36,129,000	38,603,000	37,534,000	38,595,000
Dilutive effect of stock based award (in shares)	448,000	587,000	460,000	681,000
Weighted-average shares used for diluted computation	36,577,000	39,190,000	37,994,000	39,276,000
NSUs and RSUs
Options excluded in the computation of diluted income per share
Options excluded in the computation of diluted income per share (in shares)	870,000	402,000	870,000	402,000
Stock Appreciation Rights (SARs)
Options excluded in the computation of diluted income per share
Options excluded in the computation of diluted income per share (in shares)	525,000	525,000	525,000	525,000