Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information (USD $)
In Millions, except Share data
9 Months Ended
Sep. 30, 2011
Jun. 30, 2010
Nov. 01, 2011
Class A
Nov. 01, 2011
Class B
Entity Registrant Name SKECHERS USA INC      
Entity Central Index Key 0001065837      
Document Type 10-Q      
Document Period End Date Sep. 30, 2011
Amendment Flag false      
Document Fiscal Year Focus 2011      
Document Fiscal Period Focus Q3      
Current Fiscal Year End Date --12-31      
Entity Well-known Seasoned Issuer Yes      
Entity Voluntary Filers No      
Entity Current Reporting Status Yes      
Entity Filer Category Large Accelerated Filer      
Entity Public Float   $ 1,322    
Entity Common Stock, Shares Outstanding     38,593,996 11,296,970