Stockholders' Equity (Details) (USD $) In Thousands, except Share data	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2009	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Stockholders' equity
Maximum stock repurchase amount approved by Board of Directors	$ 50,000
Number of shares repurchased (in shares)		245,000		245,000
Repurchase of common stock, payments		20,000		19,918	2,635
Average stock price of shares repurchased (in dollars per share)		$ 81.22		$ 81.22
Number of shares receivable as right under stock-based awards (in shares)				1
Revenue targets to be met for awards to be vested, low end of range				1,850
Revenue targets to be met for awards to be vested, high end of range				2,500
Diluted earnings per share targets to be met for awards to be vested, low end of range (in dollars per share)				$ 7.00
Diluted earnings per share targets to be met for awards to be vested, high end of range (in dollars per share)				$ 9.60
Reconciliation of retained earnings
Balance at the beginning of the period				513,459	365,304	365,304
Net income attributable to Deckers Outdoor Corporation		(7,339)	8,966	11,839	26,861	158,235
Repurchase of common stock				(19,916)		(10,080)
Balance at the end of the period		505,382		505,382		513,459
Restricted Stock Units (RSUs)
Stockholders' equity
Restricted stock units granted during period (in shares)		275,000
Weighted-average grant date fair value of RSU (in dollars per share)		$ 82.09
Stock Appreciation Rights (SARs)
Stockholders' equity
Stock appreciation rights exercised during period (in shares)		120,000		180,000
Exercise price of stock appreciation rights (in dollars per share)		$ 26.73		$ 26.73
Aggregate intrinsic value of stock appreciation rights exercised		$ 7,508		$ 10,924