Commitments and Contingencies (Details 2) (USD $)	12 Months Ended
Dec. 31, 2014 item	Dec. 31, 2013 item	Dec. 31, 2012 item
Capital Leases
Capital lease obligation, noncurrent	$ 15,576,000	$ 15,586,000
Capital lease obligation, current	7,000us-gaap_CapitalLeaseObligationsCurrent
Assets under capital lease
Capital Leased Assets, Gross	58,903,000us-gaap_CapitalLeasedAssetsGross	58,903,000us-gaap_CapitalLeasedAssetsGross
Accumulated depreciation	(3,841,000)	(2,356,000)
Capital lease assets, net	55,062,000	56,547,000
Future minimum lease payments under capital leases
2015	1,409,000
2016	1,403,000
2017	1,403,000
2018	1,403,000
2019	1,403,000
Thereafter	109,414,000
Total minimum lease payments	116,435,000
Less: Amount representing interest	(100,852,000)
Present value of net minimum lease payments	15,583,000
Ground and Operating Leases
Number of Real Estate Properties	30us-gaap_NumberOfRealEstateProperties
Number of hotels with ground, building and/or air leases	9	10	10
Number of ground leases	8	9	9
Number of building leases	1	1	1
Number of air leases	3	3	3
Total number of ground, building and air leases	12	13	13
Annual rent payment required under one of the air leases	1.00sho_AirLeasesAnnualRent	1.00sho_AirLeasesAnnualRent	1.00sho_AirLeasesAnnualRent
Minimum rent, including straightline adjustments	14,999,000	15,228,000	14,950,000
Percentage rent	2,718,000	2,131,000	2,000,000
Total rent expense	17,717,000us-gaap_OperatingLeasesRentExpenseNet	17,359,000us-gaap_OperatingLeasesRentExpenseNet	16,950,000us-gaap_OperatingLeasesRentExpenseNet
Lease expense on corporate facility	400,000sho_CorporateFacilityLeaseRentExpense	400,000sho_CorporateFacilityLeaseRentExpense	400,000sho_CorporateFacilityLeaseRentExpense
Future minimum payments under the terms of ground and air operating leases, and the lease on the corporate facility
2015	8,438,000
2016	8,499,000
2017	11,523,000
2018	11,450,000
2019	11,236,000
Thereafter	335,009,000
Total	386,155,000
Furniture, fixtures and equipment
Assets under capital lease
Capital Leased Assets, Gross	104,000	104,000
Hyatt Chicago Magnificent Mile
Capital Leases
Capital lease contingent rent criteria (as a percent)	4.00%	4.00%	4.00%
Percentage rent paid	0	0	3,000
Hyatt Chicago Magnificent Mile \| Buildings and improvements
Assets under capital lease
Capital Leased Assets, Gross	58,799,000	58,799,000
Acquisitions 2014 \| Fairmont Newport Beach Land Member
Ground and Operating Leases
Minimum rent, including straightline adjustments	$ (600,000)

Represents the annual rent the lessee is obligated to pay on an air lease.

No definition available.

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- Definition

Represents the basis on which contingent rental payments are determined for a capital lease obligation, including the percentage of gross revenue over a certain threshold.

+ References

No definition available.

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- Definition

This element represents the expense recorded during the period related to capital leases based on revenues generated by hotel operations, generally in excess of a base amount. Such rental expense is generally stipulated in the lease agreement, usually will provide for a fixed percentage to be paid as additional (or possibly only) rent due the lessor, and may be based on gross revenues, net revenues, or multiple variations thereof. Percentage rent is often required under leases with retail outlets located on premises owned by hoteliers, cruise lines, others in the hospitality industry, and shopping mall operators, among others.

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No definition available.

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Represents the rent expense incurred by the company during the period related to the lease on the corporate facility.

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No definition available.

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Represents the number of air leases entered into by the entity with unaffiliated parties.

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No definition available.

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Represents the number of building leases entered into by the entity with unaffiliated parties.

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No definition available.

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Represents the total number of leases entered into by the entity with unaffiliated parties.

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No definition available.

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Represents number of lodging properties held for investment by the entity which are obligated to unaffiliated parties under the terms of lease agreements.

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No definition available.

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Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Number of separate real estate development properties located on land subject to ground leases.

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No definition available.

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

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No definition available.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved.

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This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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