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Favorable Lease Assets (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 09, 2011 | Sep. 10, 2010 | Sep. 09, 2011 | Dec. 31, 2010
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | $ 43,594,000 |  | $ 43,594,000 | $ 42,622,000
Favorable Lease Assets (Textuals) [Abstract] |  |  |  |
Finite-Lived Intangible Assets, Amortization Expense |  |  | 600,000 |
Impairment of Intangible Assets, Finite-lived | 0 | 0 |  |
Boston Westin Waterfront Ground Lease [Member] |  |  |  |
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | 19,007,000 |  | 19,007,000 | 19,156,000
Favorable Lease Assets (Textuals) [Abstract] |  |  |  |
Number of room hotels based on which estimated were made for rent |  |  | 327 |
Minimum [Member] | Boston Westin Waterfront - Lease Right [Member] |  |  |  |
Favorable Lease Assets (Textuals) [Abstract] |  |  |  |
Number of Room Hotel For Development For Which Favorable Lease Assets Are Owned | 320 |  | 320 |
Maximum [Member] | Boston Westin Waterfront - Lease Right [Member] |  |  |  |
Favorable Lease Assets (Textuals) [Abstract] |  |  |  |
Number of Room Hotel For Development For Which Favorable Lease Assets Are Owned | 350 |  | 350 |
Boston Westin Waterfront - Lease Right [Member] |  |  |  |
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | 9,513,000 |  | 9,513,000 | 9,513,000
Minneapolis Hilton Ground Lease [Member] |  |  |  |
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | 6,008,000 |  | 6,008,000 | 6,059,000
Oak Brook Hills Marriot Resort Ground Lease [Member] |  |  |  |
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | 7,519,000 |  | 7,519,000 | 7,894,000
Radisson Lexington Restaurant Leases [Member] |  |  |  |
Indefinite-lived Intangible Assets by Major Class [Line Items] |  |  |  |
Carrying amount of the lease right | 1,547,000 |  | 1,547,000 | 0
Favorable Lease Assets (Textuals) [Abstract] |  |  |  |
Business Acquisition Purchase Price Allocation Favorable Lease Asset | $ 1,586,000 |  | $ 1,586,000 |

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- Definition Aggregate amount of intangible asset amortization recognized as expense during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 + Details
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