BUSINESS, ORGANIZATION AND BASIS OF CONSOLIDATION - Additional Information (Detail)			3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($) room state hotel $ / shares shares	Dec. 31, 2018 room state hotel $ / shares shares	Jun. 30, 2019 USD ($) room state hotel $ / shares shares	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) room state hotel $ / shares shares	Jun. 30, 2018 USD ($)	Dec. 31, 2015 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	188,412,376	188,219,605	188,412,376		188,412,376
Common stock, par value (dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Common share to paired share ratio					1
Revenue			$ 323,657,000	$ 336,501,000	$ 601,326,000	$ 634,268,000
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		112,500,000		112,500,000
ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	1		1		1
Common stock, par value (dollars per share) | $ / shares	$ 0.01		$ 0.01		$ 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
Class B common stock
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	1		1		1
Common stock, par value (dollars per share) | $ / shares	$ 0.01		$ 0.01		$ 0.01
Paired shares repurchased and retired, amount				32,823,000		68,002,000
Class B common stock | ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	188,412,376	188,219,605	188,412,376		188,412,376
Common stock, par value (dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Percentage of common equity (as a percent)	43.00%	43.00%	43.00%		43.00%
Class A common stock | ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Common stock, shares issued (shares) | shares	250,493,583	250,493,583	250,493,583		250,493,583
Common stock, par value (dollars per share) | $ / shares	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Extended Stay America, Inc | Class A common stock | ESH REIT
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Approximate percentage of ownership of common stock (as a percent)	57.00%		57.00%		57.00%
Dividend subject to corporate income tax, percent	57.00%	57.00%
U.S.
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of states in which the company owns hotels | state	40	40	40		40
U.S. | Hotel properties
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of hotel properties | hotel	554	554	554		554
Number of rooms | room	61,500	61,500	61,500		61,500
Number of hotel properties managed for third parties | hotel	74	73	74		74
Number of rooms managed by third parties | room	7,600	7,500	7,600		7,600
Number of real estate properties owned and managed by the company | hotel	628		628		628
Other revenues from franchised and managed properties
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Revenue			$ 4,526,000	3,200,000	$ 8,621,000	5,067,000
Restatement Adjustment | Other revenues from franchised and managed properties
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Revenue			$ 600,000		$ 800,000
Hotel operating expenses				$ 800,000		$ 1,000,000.0