Represents the number of the reporting entity's hotels in which the operations are managed by a third party.

No definition available.

Name:	sho_NumberOfHotelsManagedByThirdPartyManager
Namespace Prefix:	sho_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
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

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

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_InterstateHotelsAndResortsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_HighgateHotelsLPAndAnAffiliateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_CrestlineHotelsAndResortsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_HiltonWorldwideMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_HyattCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_DavidsonHotelAndResortsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_FairmontHotelsAndResortsCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	sho_ThirdPartyHotelManagerAxis=sho_HEIHotelsAndResortsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=sho_SunstoneHotelPartnershipLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization and Description of Business (Details) - 12 months ended Dec. 31, 2015	property	item
Organization and Description of Business
Number of hotels in which the company has interests	29	29
Number of hotels managed by third parties		29
Marriott
Organization and Description of Business
Number of hotels managed by third parties		11
Interstate Hotels & Resorts, Inc
Organization and Description of Business
Number of hotels managed by third parties		6
Highgate Hotels L.P. and an affiliate
Organization and Description of Business
Number of hotels managed by third parties		3
Crestline Hotels & Resorts
Organization and Description of Business
Number of hotels managed by third parties		2
Hilton Worldwide
Organization and Description of Business
Number of hotels managed by third parties		2
Hyatt Corporation
Organization and Description of Business
Number of hotels managed by third parties		2
Davidson Hotels & Resorts
Organization and Description of Business
Number of hotels managed by third parties		1
Fairmont Hotels & Resorts (U.S.)
Organization and Description of Business
Number of hotels managed by third parties		1
HEI Hotels & Resorts
Organization and Description of Business
Number of hotels managed by third parties		1
Sunstone Hotel Partnership, LLC
Organization and Description of Business
Controlling interest owned (as a percent)	100.00%