COMMITMENTS AND CONTINGENCIES - Additional Information - REIT (Detail)	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($) lease	Jun. 30, 2019 USD ($) lease
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	5	5
Amortization costs related to finance leases | $	$ 0	$ 0
ESH REIT
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	5	5
Amortization costs related to finance leases | $	$ 0	$ 0
Hotel properties
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	1	1
Hotel properties | ESH REIT
Commitment And Contingencies [Line Items]
Number of properties subject to ground leases	1	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 | Minimum
Commitment And Contingencies [Line Items]
Lease term		5 years
Ground lease | Maximum
Commitment And Contingencies [Line Items]
Lease term		10 years
Ground lease | ESH REIT
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 REIT | Minimum
Commitment And Contingencies [Line Items]
Lease term		5 years
Ground lease | ESH REIT | Maximum
Commitment And Contingencies [Line Items]
Lease term		10 years