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Debt (Fair Value of Debt) - Additional Information (Detail) - USD ($)
$ in Billions
Jun. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Estimated fair value $ 2.6 $ 2.7
ESH REIT    
Debt Instrument [Line Items]    
Estimated fair value $ 2.7 $ 2.7