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

Segment Information - Geographic Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, plant and equipment
Property and equipment	$ 373,183us-gaap_PropertyPlantAndEquipmentNet				$ 361,755us-gaap_PropertyPlantAndEquipmentNet				$ 373,183us-gaap_PropertyPlantAndEquipmentNet	$ 361,755us-gaap_PropertyPlantAndEquipmentNet
Net sales
Net sales, Total	569,722us-gaap_SalesRevenueGoodsNet	674,270us-gaap_SalesRevenueGoodsNet	587,051us-gaap_SalesRevenueGoodsNet	546,518us-gaap_SalesRevenueGoodsNet	450,737us-gaap_SalesRevenueGoodsNet	515,756us-gaap_SalesRevenueGoodsNet	428,247us-gaap_SalesRevenueGoodsNet	451,621us-gaap_SalesRevenueGoodsNet	2,377,561us-gaap_SalesRevenueGoodsNet	1,846,361us-gaap_SalesRevenueGoodsNet	1,560,321us-gaap_SalesRevenueGoodsNet
Domestic [Member]
Property, plant and equipment
Property and equipment	332,383				337,727				332,383	337,727
Net sales
Net sales, Total									1,558,226	1,288,302	1,064,298
Canada [Member]
Property, plant and equipment
Property and equipment	7,203				5,079				7,203	5,079
Net sales
Net sales, Total									85,139	63,665	49,460
Other international [Member]
Property, plant and equipment
Property and equipment	33,597				18,949				33,597	18,949
Net sales
Net sales, Total									$ 734,196	$ 494,394	$ 446,563