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Stockholders' Equity (Details Textual) (USD $)
 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2011
Dec. 31, 2012
Director
Dec. 31, 2011
Dec. 21, 2011
Dec. 31, 2011
Expedia [Member]
Dec. 31, 2011
Trip Advisor [Member]
Dec. 31, 2012
Common Stock [Member]
Dec. 31, 2011
Common Stock [Member]
Dec. 21, 2011
Common Stock [Member]
Dec. 31, 2012
Class B common stock [Member]
Vote
Dec. 31, 2011
Class B common stock [Member]
Vote
Dec. 21, 2011
Class B common stock [Member]
Dec. 20, 2011
Class B common stock [Member]
Dec. 31, 2011
Class B common stock [Member]
Expedia [Member]
Dec. 31, 2011
Class B common stock [Member]
Trip Advisor [Member]
Stockholders' Equity (Textual) [Abstract]                              
Authorized Class B common stock shares                   400,000,000 400,000,000        
Common stock, shares authorized             1,600,000,000 1,600,000,000   400,000,000 400,000,000        
Common stock, par value             $ 0.001 $ 0.001   $ 0.001 $ 0.001        
Common Stock Class B par value per share                   $ 0.001 $ 0.001        
Vote per common stock share             One                
Vote per common Class B stock share                   10 10        
Spin-Off of shares   2     1                    
Percentage of directors elected by common stock holders   25.00%                          
Common stock shares outstanding prior to spin off             130,030,138 120,661,808 120,661,020 12,799,999 12,799,999 12,799,999 12,799,999    
Expedia common stock reclassified, shares         120,661,020                 12,799,999  
TripAdvisor common stock for exchange, shares           120,661,020                 12,799,999
Stockholders Equity (Additional Textual) [Abstract]                              
Number of directors   3                          
Conversion of Class B common stock   1                          
Preferred Common Stock Shares Authorized 100,000,000 100,000,000 100,000,000                        
Preferred Common Stock Par value per share $ 0.001 $ 0.001 $ 0.001                        
Preferred Stock, Shares Issued 0 0 0                        
Cash dividend transferred to Expedia $ 405,500,000                            
Cash on hand retained after Spin-Off       165,000,000                      
Amount remitted to Expedia 165,000,000   165,000,000                        
Additional receivable from Expedia 7,000,000   7,000,000                        
Unrealized tax benefits   $ 72