DERIVATIVE INSTRUMENTS - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Sep. 30, 2016
Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Notional amount	$ 250,000,000.0		$ 250,000,000.0
Reduction of outstanding derivative amount			50,000,000.0
Interest rate cash flow hedge gain, net of tax			1,512,000		$ 4,934,000
Gain to be reclassified to earnings in next twelve months			1,500,000
Designated as Hedging Instrument | Interest Rate Swap | Interest expense, net
Derivative [Line Items]
Interest rate cash flow hedge gain, net of tax	821,000	$ 664,000	1,797,000	$ 1,085,000
ESH REIT | Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Notional amount	250,000,000.0		250,000,000.0
Reduction of outstanding derivative amount			50,000,000.0
Interest rate cash flow hedge gain, net of tax			1,774,000		$ 5,789,000
Gain to be reclassified to earnings in next twelve months			1,500,000
ESH REIT | Designated as Hedging Instrument | Interest Rate Swap | Interest expense, net
Derivative [Line Items]
Interest rate cash flow hedge gain, net of tax	$ 821,000	$ 664,000	$ 1,797,000	$ 1,085,000
Term Loan Facility | Medium-term Notes | ESH REIT Term Facility | ESH REIT
Derivative [Line Items]
Derivative rate (as a percent)						1.175%