Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Basic earnings (loss) per share
Net earnings (loss) attributable to Skechers U.S.A., Inc.	$ 8,285	$ 36,378	$ (9,823)	$ 132,911
Weighted average common shares outstanding	48,445	47,586	48,344	47,268
Basic earnings (loss) per share attributable to Skechers U.S.A., Inc.	$ 0.17	$ 0.76	$ (0.20)	$ 2.81
Diluted earnings (loss) per share
Net earnings (loss) attributable to Skechers U.S.A., Inc.	$ 8,285	$ 36,378	$ (9,823)	$ 132,911
Weighted average common shares outstanding	48,445	47,586	48,344	47,268
Dilutive effect of stock options	954	1,590		1,749
Weighted average common shares outstanding	49,399	49,176	48,344	49,017
Diluted earnings (loss) per share attributable to Skechers U.S.A., Inc.	$ 0.17	$ 0.74	$ (0.20)	$ 2.71
Class A
Earnings Per Share (Textual) [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0		25,816

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