INTANGIBLE ASSETS AND GOODWILL - Narrative REIT (Details)	9 Months Ended
Sep. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period for amortization intangible	10 years
ESH REIT
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period for amortization intangible	8 years

Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration