COMMITMENTS AND CONTINGENCIES - Components of Lease Expense - REIT (Details) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Entity Information [Line Items]
Operating lease costs	$ 769	$ 768
Finance lease costs - interest	61	61
Total lease costs	830	829
ESH Hospitality, Inc.
Entity Information [Line Items]
Operating lease costs	326	325
Finance lease costs - interest	61	61
Total lease costs	$ 387	$ 386