SUBSEQUENT EVENTS - REIT - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	May 06, 2020	Mar. 31, 2020	Mar. 31, 2019	Apr. 30, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)		$ 0.09	$ 0.07
Unrestricted cash and cash equivalents		$ 710,131			$ 346,812
Revolving Credit Facility
Subsequent Event [Line Items]
Amount of borrowing capacity drawn		400,000
ESH Hospitality, Inc.
Subsequent Event [Line Items]
Unrestricted cash and cash equivalents		628,887			$ 296,134
ESH Hospitality, Inc. | Revolving Credit Facility | 2016 ESH REIT Revolving Credit Facility
Subsequent Event [Line Items]
Amount of borrowing capacity drawn		$ 350,000
Subsequent Event | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Unrestricted cash and cash equivalents				$ 608,400
Class A common stock | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)		$ 0.14	0.15
Class A common stock | Subsequent Event | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)	$ 0.01
Class B common stock
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)		0.14	0.15
Class B common stock | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)		$ 0.14	$ 0.15
Class B common stock | Subsequent Event | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)	$ 0.01