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Summary of Investments in Affiliates (Parenthetical) (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
Property
European Joint Venture    
Schedule Of Investments [Line Items]    
Percentage of distribution from sale proceeds   92.00%
Number of properties sold | Property   9
Hyatt Place JV    
Schedule Of Investments [Line Items]    
Loan refinancing proceeds | $ $ 14