Debt (Company's Outstanding Debt) (Detail) - USD ($)			1 Months Ended	9 Months Ended	12 Months Ended
	Feb. 28, 2017	Aug. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Carrying Amount, Term loan facility				$ 1,267,504,000	$ 1,274,756,000
Carrying Amount, Senior notes				1,268,621,000	1,265,518,000
Carrying Amount, Revolving credit facilities				0	45,000,000
Carrying Amount, Total				2,571,557,000	2,624,601,000
Unamortized deferred financing costs				38,018,000	42,408,000
Notional amount				$ 400,000,000
Mandatory prepayments are required up to a certain amount of excess cash flow (percent)				50.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, capacity				$ 600,000,000
ESH REIT
Debt Instrument [Line Items]
Carrying Amount, Term loan facility				1,267,504,000	1,274,756,000
Carrying Amount, Senior notes				1,268,621,000	1,265,518,000
Carrying Amount, Revolving credit facilities				0	45,000,000
Carrying Amount, Total				2,621,557,000	2,674,601,000
Unamortized deferred financing costs				$ 37,589,000	41,897,000
Mandatory prepayments are required up to a certain amount of excess cash flow (percent)				50.00%
ESH REIT | Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, capacity		$ 600,000,000
ESH REIT 2016 Term Facility | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Stated amount				$ 1,300,000,000
Carrying Amount, Term loan facility				1,281,530,000	1,290,560,000
Unamortized deferred financing costs				$ 14,026,000	$ 15,804,000
Interest Rate (as a percent)				3.71%	3.75%
Quarterly installment				$ 3,240,000
Unamortized discount on debt				5,500,000	$ 6,200,000
Notional amount				$ 400,000,000
Mandatory prepayments are required up to a certain amount of excess cash flow (percent)				50.00%
Revolving credit facility, capacity		1,300,000,000.0
ESH REIT 2016 Term Facility | ESH REIT | Medium-term Notes
Debt Instrument [Line Items]
Stated amount				$ 1,300,000,000
Carrying Amount, Term loan facility				1,281,530,000	1,290,560,000
Unamortized deferred financing costs				$ 14,026,000	$ 15,804,000
Interest Rate (as a percent)				3.71%	3.75%
ESH REIT 2016 Term Facility | ESH REIT | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)				1.175%
Quarterly installment				$ 3,240,000
Unamortized discount on debt				5,500,000	$ 6,200,000
Notional amount				400,000,000
Revolving credit facility, capacity		$ 1,300,000,000.0
ESH REIT 2025 Notes
Debt Instrument [Line Items]
Unamortized deferred financing costs				31,379,000	34,482,000
ESH REIT 2025 Notes | Senior Notes
Debt Instrument [Line Items]
Stated amount			$ 800,000,000.0	1,300,000,000
Carrying Amount, Senior notes				1,290,027,000	1,289,041,000
Unamortized deferred financing costs				$ 21,406,000	$ 23,523,000
Stated interest rate (as a percent)				5.25%
Interest Rate (as a percent)				5.25%	5.25%
Unamortized discount on debt				$ 10,000,000	$ 11,000,000
ESH REIT 2025 Notes | ESH REIT | Senior Notes
Debt Instrument [Line Items]
Stated amount				1,300,000,000
Carrying Amount, Senior notes				1,290,027,000	1,289,041,000
Unamortized deferred financing costs				$ 21,406,000	$ 23,523,000
Stated interest rate (as a percent)				5.25%
Interest Rate (as a percent)				5.25%	5.25%
Unamortized discount on debt				$ 10,000,000	$ 11,000,000
Proceeds from issuance of debt			$ 800,000,000
ESH REIT 2016 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated amount				350,000,000
Carrying Amount, Revolving credit facilities				0	45,000,000
Unamortized deferred financing costs				2,157,000	$ 2,570,000
Spread on base rate (as a percent)		1.00%
Interest Rate (as a percent)					3.33%
ESH REIT 2016 Revolving Credit Facility | ESH REIT | Line of Credit
Debt Instrument [Line Items]
Stated amount				350,000,000
Carrying Amount, Revolving credit facilities				0	$ 45,000,000
Unamortized deferred financing costs				2,157,000	$ 2,570,000
Interest Rate (as a percent)					3.33%
ESH REIT 2016 Revolving Credit Facility | ESH REIT | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, increase limit				600,000,000
Revolving credit facility, capacity		$ 350,000,000.0
Corporation 2016 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Stated amount				50,000,000
Carrying Amount, Revolving credit facilities				0	$ 0
Unamortized deferred financing costs				429,000	511,000
Spread on base rate (as a percent)		1.00%
Revolving credit facility, capacity		$ 50,000,000.0
Unsecured Intercompany Facility | Line of Credit
Debt Instrument [Line Items]
Stated amount				75,000,000
Carrying Amount, Revolving credit facilities				50,000,000	50,000,000
Unamortized deferred financing costs				$ 0	$ 0
Stated interest rate (as a percent)				5.00%
Interest Rate (as a percent)				5.00%	5.00%
Unsecured Intercompany Facility | Line of Credit | Unsecured Debt
Debt Instrument [Line Items]
Stated amount				$ 75,000,000
Carrying Amount, Revolving credit facilities				0	$ 0
Unamortized deferred financing costs				$ 0	$ 0
Stated interest rate (as a percent)				5.00%
Interest Rate (as a percent)				5.00%	5.00%
Revolving credit facility, capacity				$ 50,000,000	$ 50,000,000.0
Maximum unsecured intercompany credit facility amount				300,000,000.0	$ 300,000,000.0
Unsecured Intercompany Facility | ESH REIT | Line of Credit | Unsecured Debt
Debt Instrument [Line Items]
Carrying Amount, Revolving credit facilities				$ 50,000,000
Stated interest rate (as a percent)		5.00%		5.00%
Revolving credit facility, capacity				$ 50,000,000
Maximum unsecured intercompany credit facility amount				$ 300,000,000.0
LIBOR | ESH REIT | ESH REIT 2016 Term Facility | Medium-term Notes
Debt Instrument [Line Items]
Spread on base rate (as a percent)				2.50%	3.00%
LIBOR | ESH REIT 2016 Term Facility | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Spread on base rate (as a percent)	3.00%			2.50%	3.00%
LIBOR | ESH REIT 2016 Term Facility | ESH REIT | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Spread on base rate (as a percent)	3.00%			2.50%
LIBOR | ESH REIT 2016 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Spread on base rate (as a percent)				2.75%
LIBOR | ESH REIT 2016 Revolving Credit Facility | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Spread on base rate (as a percent)				2.75%
LIBOR | ESH REIT 2016 Revolving Credit Facility | ESH REIT
Debt Instrument [Line Items]
Spread on base rate (as a percent)		1.00%
LIBOR | Corporation 2016 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Spread on base rate (as a percent)		3.00%
LIBOR | Corporation 2016 Revolving Credit Facility | Corporation Revolving Credit Facility
Debt Instrument [Line Items]
Spread on base rate (as a percent)				3.00%
Minimum | LIBOR | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Spread on base rate (as a percent)				0.75%	0.75%
Minimum | LIBOR | ESH REIT | Term Loan Facility | Medium-term Notes
Debt Instrument [Line Items]
Spread on base rate (as a percent)				0.75%	0.75%
Minimum | LIBOR | ESH REIT 2016 Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Spread on base rate (as a percent)				2.25%
Minimum | LIBOR | ESH REIT 2016 Revolving Credit Facility | ESH REIT
Debt Instrument [Line Items]
Spread on base rate (as a percent)		2.25%