v2.4.0.6
Document And Entity Information (USD $)
12 Months Ended
Dec. 31, 2011
Jan. 20, 2012
Jun. 30, 2011
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2011    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY    
Entity Registrant Name WYNN LAS VEGAS LLC    
Entity Central Index Key 0001180638    
Entity Filer Category Non-accelerated Filer    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 0
Entity Current Reporting Status Yes    
Membership Interests Description Wynn Resorts Holdings, LLC owns all of the membership interests of the registrant.    
Entity Common Stock, Shares Outstanding   0