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Significant Accounting Policies (Details 6) (USD $) Share data in Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 segment | Dec. 31, 2010 | Dec. 31, 2009
Deferred Leasing Commissions |  |  |
Amortization of deferred leasing commissions | $ 3,806,000 | $ 2,867,000 | $ 2,665,000
Estimated annual amortization of deferred leasing commissions for the succeeding five years |  |  |
2012 | 3,928,000 |  |
2013 | 3,590,000 |  |
2014 | 3,263,000 |  |
2015 | 2,800,000 |  |
2016 | 2,451,000 |  |
2017 and thereafter | 6,609,000 |  |
Summary of rental revenue |  |  |
Income from leases | 99,336,000 | 87,667,000 | 93,870,000
Reimbursable expenses | 26,108,000 | 24,549,000 | 27,084,000
Straight-line rent adjustment | 9,900,000 | 3,913,000 | 1,778,000
Amortization of favorable and unfavorable leases | 47,000 | (1,491,000) | (3,391,000)
Rental revenue | $ 135,391,000 | $ 114,638,000 | $ 119,341,000
Segment Reporting |  |  |
Number of reporting segments | 1 |  |
Net Income Per Share |  |  |
Denominator used for calculating basic and diluted net income per share (in shares) | 81,857 | 79,826 | 73,001

X
- Definition The net amount of expense (income) recorded in earnings to allocate the value of the identifiable intangible asset or liability established for an assumed above or below-market lease acquired in an acquisition. + References No definition available. + Details
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- Definition The amount of amortization expense expected to be recognized for the remainder of deferred leasing commissions useful life after the fifth succeeding fiscal year. + References No definition available. + Details
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- Definition The amount of amortization of deferred leasing commissions expected to be recognized during the year five of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization of deferred leasing commissions expected to be recognized during the year four of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization of deferred leasing commissions expected to be recognized during the year one of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization of deferred leasing commissions expected to be recognized during the year three of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The amount of amortization of deferred leasing commissions expected to be recognized during the year two of the five succeeding fiscal years. + References No definition available. + Details
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- Definition The adjustment during the reporting period in the amount due that is the result of the cumulative difference between actual rent due and rental income recognized on a straight-line basis. + References No definition available. + Details
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- Definition This element represents the amortization of deferred leasing fees incurred by the lessor and amortized over the term of the lease. Such fees represent (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=6748888&loc=d3e40246-112709 + Details
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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 19 -Subparagraph b -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 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453417&loc=d3e39896-112707 + Details
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- Definition The aggregate revenue from real estate operations during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition In accordance with the provisions of their lease agreement, this element represents allowable charges due a landlord from its tenant. In retail store and office building leases, for example, tenant reimbursements may cover items such as taxes, utilities, and common area expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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