SUBSEQUENT EVENTS - REIT - Additional Information (Detail) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 10, 2020	Aug. 06, 2020	Jul. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Subsequent Event [Line Items]
Revolving credit facilities				$ 399,765,000		$ 399,765,000		$ 0
Common distributions, per common share (dollars per share)				$ 0	$ 0.09	$ 0.09	$ 0.16
Unrestricted cash and cash equivalents				$ 667,553,000		$ 667,553,000		346,812,000
ESH Hospitality, Inc.
Subsequent Event [Line Items]
Revolving credit facilities				350,000,000		350,000,000		0
Unrestricted cash and cash equivalents				$ 606,680,000		$ 606,680,000		$ 296,134,000
Subsequent Event | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Unrestricted cash and cash equivalents			$ 630,800,000
Subsequent Event | ESH Hospitality, Inc. | Revolving Credit Facility | 2016 ESH REIT Revolving Credit Facility
Subsequent Event [Line Items]
Stated Interest Rate			4.50%
Commitment fee percentage			0.25%
Revolving credit facilities	$ 0
Repayments of lines of credit		$ 350,000,000.0
Class A common stock | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)				$ 0.01	0.14	$ 0.15	0.29
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)				0.01	0.14	0.15	0.29
Class B common stock | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)				$ 0.01	$ 0.14	$ 0.15	$ 0.29
Class B common stock | Subsequent Event | ESH Hospitality, Inc.
Subsequent Event [Line Items]
Common distributions, per common share (dollars per share)	$ 0.01