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Summary of Significant Accounting Policies (Details) (USD $)
3 Months Ended 12 Months Ended 3 Months Ended
Dec. 31, 2013
item
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
item
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2014
Accounts Receivable                      
Allowance for doubtful accounts (in dollars) 200,000us-gaap_AllowanceForDoubtfulAccountsReceivable             $ 200,000us-gaap_AllowanceForDoubtfulAccountsReceivable     $ 200,000us-gaap_AllowanceForDoubtfulAccountsReceivable
Marriott                      
Reporting Periods                      
Weeks reported in fiscal quarter         84 days 84 days 84 days        
Number of additional days included in prior calendar year               3 days      
Number of additional days included in fiscal period               3 days      
Number of hotels using the same reporting periods 10sho_NumberOfHotelsWithSameReportingPeriods
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
            10sho_NumberOfHotelsWithSameReportingPeriods
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
     
Number of days less in previous year's quarter   8 days 7 days 8 days              
Number of days more in previous year's quarter 20 days                    
Total revenue (in dollars)               2,300,000sho_EstimatedEffectOnRevenueRecordedDueToNumberOfDaysExcludedFromFiscalPeriod
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
(1,251,000)sho_EstimatedEffectOnRevenueRecordedDueToNumberOfDaysExcludedFromFiscalPeriod
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
   
Net income (in dollars)               $ 672,000sho_EstimatedEffectOnNetIncomeRecordedDueToNumberOfDaysExcludedFromFiscalPeriod
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
$ (328,000)sho_EstimatedEffectOnNetIncomeRecordedDueToNumberOfDaysExcludedFromFiscalPeriod
/ sho_ThirdPartyHotelManagerAxis
= sho_MarriottInternationalIncOrMarriottHotelServicesIncMember
   
Number of days reported in a year               368 days 364 days    
Number of standard days in a year               365 days      
Marriott | Minimum                      
Reporting Periods                      
Weeks reported in fiscal quarter                   112 days  
Marriott | Maximum                      
Reporting Periods                      
Weeks reported in fiscal quarter                   119 days