Earnings Per Share - Basic Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Basic earnings per share
Net earnings attributable to Skechers U.S.A., Inc.	$ 93,995	$ 97,612
Weighted average common shares outstanding	155,097	153,745
Basic earnings per share attributable to Skechers U.S.A., Inc.	$ 0.61	$ 0.63