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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of facility and improvements held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of furniture, fixtures and equipment acquired at the acquisition date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of lease liability assumed at the acquisition date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The amount of other assets not separately specified in the taxonomy acquired at the acquisition date.

No definition available.

Name:	inn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssetsCurrentAndNoncurrent
Namespace Prefix:	inn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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The amount of other liabilities not separately specified in the taxonomy acquired at the acquisition date.

No definition available.

Name:	inn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilitiesCurrentAndNoncurrent
Namespace Prefix:	inn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount of assets acquired at the acquisition date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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Period Type:	instant

Amount of real estate acquired, at the acquisition date.

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.