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Amount of tangible personal property acquired and used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment, acquired at the acquisition date.

No definition available.

Name:	svc_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFurnitureFixturesAndEquipment
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Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Held-For-Sale

No definition available.

Name:	svc_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedHeldForSale
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Data Type:	xbrli:monetaryItemType
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Asset Acquisition Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets (Liabilities)

No definition available.

Name:	svc_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsLiabilities
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Amount of land acquired, at the acquisition date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Amount of land improvements acquired held for productive use including, but not limited to, office, production, storage and distribution facilities, acquired at the acquisition date.

No definition available.

Name:	svc_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLandImprovements
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Area of a real estate property.

No definition available.

Name:	us-gaap_AreaOfRealEstateProperty
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The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

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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.

No definition available.

Name:	us-gaap_RealEstatePropertiesLineItems
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Name:	srt_StatementGeographicalAxis=svc_StoughtonMAMember
Namespace Prefix:
Data Type:	na
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Period Type:

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember
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Data Type:	na
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