Organization (Details)	Dec. 31, 2018 Room Country Hotel	Mar. 15, 2017 Rate shares
Organization and basis of presentation [Line Items]
Number of hotel and resort properties \| Hotel	5,685
Number of hotel and resort rooms \| Room	912,960
Number of countries and territories \| Country	113
HNA Tourism Group Co., Ltd. [member]
Organization and basis of presentation [Line Items]
Common stock acquired \| shares		82,500,000.0
HNA Tourism Group Co., Ltd. [member]
Organization and basis of presentation [Line Items]
Common stock ownership percentage \| Rate		25.00%

The Sponsor's percentage of ownership of the entity's common stock as of balance sheet date.

No definition available.

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The amount of common stock acquired in purchase.

No definition available.

The number of hotel and resort properties as of balance sheet date.

No definition available.

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The number of hotel and resort rooms as of the balance sheet date.

No definition available.

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[Line Items] for Organization and basis of presentation [Table]

No definition available.

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The number of countries in which the entity operates as of balance sheet date.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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