BUSINESS, ORGANIZATION AND BASIS OF CONSOLIDATION - REIT - Additional Information (Detail)		3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($) room state hotel $ / shares shares	Jun. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2018 room state hotel $ / shares shares	Dec. 31, 2015 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	188,412,376			188,219,605
Common stock, par value (dollars per share) | $ / shares	$ 0.01			$ 0.01
Paired Share Repurchase Program
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Amount of stock repurchase plan authorized (up to) | $					$ 400,000,000
Paired shares repurchased and retired (shares) | shares	17,300,000
Paired shares repurchased and retired, amount | $	$ 180,100,000
Remaining available shares for repurchase (in shares) | shares	112,500,000
U.S.
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of states in which the company owns hotels | state	40			40
Hotel properties | U.S.
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotel properties | hotel	554			554
Number of rooms | room	61,500			61,500
ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	1
Common stock, par value (dollars per share) | $ / shares	$ 0.01
Paired shares repurchased and retired, amount | $		$ 11,936,000	$ 24,737,000
ESH REIT | Paired Share Repurchase Program
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Paired shares repurchased and retired, amount | $	$ 107,500,000
ESH REIT | ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Approximate percentage of ownership of common stock (as a percent)	57.00%