- Definition

The deposits required under the agreement as a percentage of the hotel property's gross revenue, into a reserve fund for capital expenditures.

+ References

No definition available.

+ Details

Name:	inn_DepositsRequiredAsPercentageOfRealEstatePropertysGrossRevenueIntoReserveFundForCapitalExpenditures
Namespace Prefix:	inn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of fees expensed during the reporting period related to the agreement.

+ References

No definition available.

+ Details

Name:	inn_FeesExpensedRelatedToAgreement
Namespace Prefix:	inn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The franchise fees received by each franchisor as a percentage of each real estate property's gross revenue under the agreement.

+ References

No definition available.

+ Details

Name:	inn_FranchiseFeesReceivedByEachFranchisorAsPercentageOfEachRealEstatePropertysGrossRevenue
Namespace Prefix:	inn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The marketing fees payable by the entity as a percentage of gross revenue under the agreement.

+ References

No definition available.

+ Details

Name:	inn_MarketingFeesPayableAsPercentageOfEachRealEstatePropertiesGrossRevenue
Namespace Prefix:	inn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period the contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	inn_TermOfContract
Namespace Prefix:	inn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherCommitmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_TypeOfArrangementAxis=inn_FranchiseAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=inn_ManagementAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Franchise Agreements
Commitments and contingencies
Fees related to the agreement	$ 47.9	$ 25.0	$ 20.7
Franchise Agreements \| Minimum
Commitments and contingencies
Management agreement, term	10 years
Franchise fees received by each franchisor as a percentage of each hotel property's gross revenue	2.00%
Franchise Agreements \| Maximum
Commitments and contingencies
Management agreement, term	20 years
Franchise fees received by each franchisor as a percentage of each hotel property's gross revenue	6.00%
Marketing fees payable as a percentage of gross revenue	4.00%
Deposits required under the agreement as a percentage of the hotel property's gross revenue, into a reserve fund for capital expenditures	5.00%
Management Agreements
Commitments and contingencies
Management agreement, term	25 years
Fees related to the agreement	$ 17.4	$ 9.9	$ 6.3