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Summary of Significant Accounting Policies - Rental Property (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accounting Policies [Abstract] |  |  |
Internal development costs, capitalized | $ 1.6skt_InternalDevelopmentCostsCaptialized | $ 2.2skt_InternalDevelopmentCostsCaptialized | $ 1.8skt_InternalDevelopmentCostsCaptialized
Interest costs incurred, capitalized | 5.1us-gaap_InterestCostsIncurredCapitalized | 1.6us-gaap_InterestCostsIncurredCapitalized | 1.2us-gaap_InterestCostsIncurredCapitalized
Buildings and improvements, estimated useful life | 33 years |  |
Land improvements, estimated useful life | 15 years |  |
Property, plant and equipment, estimated useful life, minimum | 7 years |  |
Real estate depreciation | $ 80.1skt_RealEstateDepreciation | $ 74.7skt_RealEstateDepreciation | $ 73.7skt_RealEstateDepreciation
Purchase price allocated to assets, useful life, maximum | 33 years |  |

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- Definition Buildings and Improvements, Estimated Useful Life + References No definition available. + Details
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- Definition Internal Development Costs, Captialized + References No definition available. + Details
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- Definition Land Improvements Useful Life + References No definition available. + Details
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- Definition Purchase Price Allocated to Assets, Useful Life, Maximum + References No definition available. + Details
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- Definition Real Estate Depreciation + References No definition available. + Details
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- Details
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- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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