Skechers U.S.A., Inc. Annual report pursuant to Section 13 and 15(d)

Segment Information - Geographic Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Sales
Net sales, Total	$ 722,683	$ 856,179	$ 800,464	$ 767,997	$ 569,722	$ 674,270	$ 587,051	$ 546,518	$ 3,147,323	$ 2,377,561	$ 1,846,361
Property, plant and equipment, net
Property, plant and equipment, net	435,907				373,183				435,907	373,183
Domestic [Member]
Net Sales
Net sales, Total									1,876,201	1,558,226	1,288,302
Property, plant and equipment, net
Property, plant and equipment, net	356,704				332,383				356,704	332,383
Canada [Member]
Net Sales
Net sales, Total									103,268	85,139	63,665
Property, plant and equipment, net
Property, plant and equipment, net	8,447				7,203				8,447	7,203
Other international [Member]
Net Sales
Net sales, Total									1,167,854	734,196	$ 494,394
Property, plant and equipment, net
Property, plant and equipment, net	$ 70,756				$ 33,597				$ 70,756	$ 33,597