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Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Income Tax Contingency [Line Items]        
Effective income tax rate   17.00% 19.00%  
Unrecognized tax benefits $ 50,000 $ 50,000   $ 69,000
Percentage of future payments to existing shareholders, US federal income tax cash savings   85.00%    
Percentage of future payments to other shareholders, US federal income tax cash savings   15.00%    
Payments on TRA   $ 101,482 $ 58,908  
Travelocity        
Income Tax Contingency [Line Items]        
U.S. tax benefit related to discontinued operations 19,000 19,000    
Internal Revenue Service (IRS)        
Income Tax Contingency [Line Items]        
Current TRA liability 72,000 72,000   104,000
Payments on TRA   105,000 60,000  
Accrued interest of TRA liability 3,000 3,000 $ 1,000  
Other noncurrent liabilities | Internal Revenue Service (IRS)        
Income Tax Contingency [Line Items]        
TRA liability $ 1,000 $ 1,000   $ 73,000