Summary of Significant Accounting Policies - REIT - Depreciation and Amortization of Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2019
Hotel Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Hotel Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	49 years
Hotel Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	4 years
Hotel Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	39 years
Hotel Site Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Hotel Site Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Hotel Furniture Fixtures And Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
Hotel Furniture Fixtures And Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
ESH Hospitality, Inc. | Hotel Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
ESH Hospitality, Inc. | Hotel Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	49 years
ESH Hospitality, Inc. | Hotel Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	4 years
ESH Hospitality, Inc. | Hotel Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	39 years
ESH Hospitality, Inc. | Hotel Site Improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
ESH Hospitality, Inc. | Hotel Site Improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
ESH Hospitality, Inc. | Hotel Furniture Fixtures And Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	2 years
ESH Hospitality, Inc. | Hotel Furniture Fixtures And Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years