Intangible Assets and Goodwill - Additional Information (Detail)	6 Months Ended
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Weighted-average amortization period remaining for definite-lived intangible assets (years)	14 years

Weighted average amortization period for intangible assets.

No definition available.

Name:	stay_WeightedAverageAmortizationPeriodForIntangibleAssets
Namespace Prefix:	stay_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration