Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Distributed portion of taxable income, percent					95.00%
Provision (benefit) for income taxes	$ 20,295	$ 15,867	$ 40,721	$ 26,211
Effective tax rate, percent	23.50%	21.80%	23.60%	16.40%
Effective tax rate differs from federal statutory rate, percent			35.00%
Discrete tax provision		$ 2,000
Deferred income tax benefit, reversal of net deferred tax liabilities		800		$ 8,500
Reversal of deferred tax liability				1,800
ESH REIT
Income Taxes [Line Items]
Dividend subject to corporate income tax, percent			57.00%
Distributed portion of taxable income, percent			100.00%		95.00%
Provision (benefit) for income taxes	$ 198	$ 671	$ 435	$ (3,128)
Effective tax rate, percent	0.70%	2.80%	5.40%	(18.50%)
Effective tax rate differs from federal statutory rate, percent			35.00%
Discrete tax provision	$ 500
Payable adjustment				$ 800
Deferred income tax benefit, reversal of net deferred tax liabilities				$ 2,300