Real Estate, Number Of Properties, Transferred Branding And Management

No definition available.

Name:	svc_RealEstateNumberOfPropertiesTransferredBrandingAndManagement
Namespace Prefix:	svc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of states in which properties of the entity are located.

+ References

No definition available.

+ Details

Name:	svc_RealEstatePropertiesNumberOfStates
Namespace Prefix:	svc_
Data Type:	xbrli:integerItemType
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_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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

Concentration - Narrative (Details)	1 Months Ended		3 Months Ended	12 Months Ended
Concentration - Narrative (Details)	Mar. 31, 2021 hotel	Feb. 28, 2021 hotel	Dec. 15, 2020 hotel	Dec. 31, 2020 state travelCenter hotel property retailProperty
Concentration Risk
Number of properties \| travelCenter				1,109
Hotel
Concentration Risk
Number of properties				310
Sonesta Agreement \| Hotel \| Subsequent event
Concentration Risk
Number of properties		193
Marriott contracts \| Hotel
Concentration Risk
Number of properties				105
Marriott contracts \| Marriott International, Inc. \| Hotel
Concentration Risk
Number of properties				105
IHG Agreement \| Sonesta \| Subsequent event
Concentration Risk
Number of properties with transferred branding and management		78
IHG Agreement \| Forecast \| Sonesta
Concentration Risk
Number of properties with transferred branding and management	10
Net Lease Property
Concentration Risk
Number of properties \| retailProperty				1,109
Hotel \| Sonesta
Concentration Risk
Number of properties with transferred branding and management				9
Hotel \| Sonesta Agreement
Concentration Risk
Number of properties				168
Hotel \| Marriott contracts
Concentration Risk
Number of properties				122
Hotel \| IHG Agreement \| Sonesta
Concentration Risk
Number of properties with transferred branding and management			115
Maximum \| IHG Agreement \| Hotel
Concentration Risk
Number of properties				1
Geographic distribution, foreign \| Hotel
Concentration Risk
Concentration risk percentage				2.00%
North America
Concentration Risk
Number of states in which properties are located \| state				47
Various States, USA \| Geographic distribution, domestic \| Minimum
Concentration Risk
Concentration risk percentage				6.00%
Various States, USA \| Geographic distribution, domestic \| Maximum
Concentration Risk
Concentration risk percentage				12.00%
Ontario, Canada \| Hotel
Concentration Risk
Number of properties \| property				2
Credit concentration \| Marriott contracts \| Real Estate Assets at Cost \| Marriott International, Inc.
Concentration Risk
Concentration risk percentage				8.90%
Credit concentration \| Net Lease Property \| Real Estate Assets at Cost \| Travel Centers of America LLC
Concentration Risk
Concentration risk percentage				26.80%
Credit concentration \| Hotel \| Sonesta Agreement \| Real Estate Assets at Cost
Concentration Risk
Concentration risk percentage				28.30%