COMMITMENTS AND CONTINGENCIES - Additional Information - REIT (Detail)	3 Months Ended
	Mar. 31, 2020 lease
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	5
Minimum
Commitment And Contingencies [Line Items]
Renewal term (years)	5 years
Maximum
Commitment And Contingencies [Line Items]
Renewal term (years)	10 years
ESH Hospitality, Inc.
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	5
ESH Hospitality, Inc. | Minimum
Commitment And Contingencies [Line Items]
Renewal term (years)	5 years
ESH Hospitality, Inc. | Maximum
Commitment And Contingencies [Line Items]
Renewal term (years)	10 years
Hotel properties
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	1
Hotel properties | ESH Hospitality, Inc.
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	1
Ground lease
Commitment And Contingencies [Line Items]
Number of ground leases that are operating leases	3
Number of ground leases that are finance leases	2
Ground lease | ESH Hospitality, Inc.
Commitment And Contingencies [Line Items]
Number of ground leases that are operating leases	3
Number of ground leases that are finance leases	2