Related Party Transactions - REIT - Additional Information (Detail) shares in Thousands	4 Months Ended	12 Months Ended			32 Months Ended
	Apr. 30, 2017 lease	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2019 USD ($) lease
Related Party Transaction [Line Items]
Stock repurchased and retired during period		$ 130,721,000	$ 85,405,000	$ 62,323,000
Common distributions		67,182,000	45,791,000	56,126,000
Line of Credit | Unsecured Intercompany Facility
Related Party Transaction [Line Items]
Unsecured intercompany facility, carrying amount		0	0		$ 0
ESH Hospitality, Inc.
Related Party Transaction [Line Items]
Number of leases | lease	4				3
Fixed rental revenues		472,523,000	450,277,000	461,162,000
Percentage rental revenues		$ 177,375,000	217,151,000	222,338,000
Lease renewal term		5 years			5 years
Expenses from related party		$ 9,900,000	9,800,000	8,500,000
Stock repurchased and retired during period		47,507,000	31,059,000	22,776,000
Common distributions		240,983,000	277,814,000	235,604,000
Issuance of Class B common stock related to issuance of Paired Shares		1,510,000	2,732,000	1,915,000
ESH Hospitality, Inc. | Common Class A
Related Party Transaction [Line Items]
Common distributions		137,800,000	157,800,000	$ 132,800,000
ESH Hospitality, Inc. | Common Class B
Related Party Transaction [Line Items]
Stock repurchased and retired during period (in shares) | shares				2,000
Issuance of Class B common stock related to issuance of Paired Shares		$ 1,400,000	$ 2,600,000	$ 1,900,000
Stock Issued During Period, Shares, New Issues | shares		200	400	300
Corporation RSUs vested and not settled | shares		83	89
Due from Extended Stay America, Inc.		$ 300,000	$ 400,000		$ 300,000
ESH Hospitality, Inc. | Sponsors | Common Class B
Related Party Transaction [Line Items]
Stock repurchased and retired during period				$ 12,200,000
ESH Hospitality, Inc. | Corporation | Equity awards receivable (payable)
Related Party Transaction [Line Items]
Equity-based compensation expense		900,000	900,000	1,100,000
ESH Hospitality, Inc. | Unsecured Intercompany Facility
Related Party Transaction [Line Items]
Unsecured intercompany facility, carrying amount		0	0		0
ESH Hospitality, Inc. | Line of Credit | Unsecured Intercompany Facility
Related Party Transaction [Line Items]
Unsecured intercompany facility, carrying amount		0	0		0
ESH Hospitality, Inc. | Unsecured Debt | Line of Credit | Unsecured Intercompany Facility
Related Party Transaction [Line Items]
Interest expense, related party		0	$ 0	$ 2,400,000
Additional principal available (up to)		$ 300,000,000.0			$ 300,000,000.0