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Income Taxes (Details) (USD $)
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3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2010
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Jun. 30, 2010
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Mar. 31, 2010
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Tax treatment of distributions: | |||||||||||
| Ordinary income (in dollars per share) | $ 2.28131 | $ 1.99928 | $ 1.8356 | ||||||||
| Long-term capital gain (in dollars per share) | $ 0.01869 | $ 0.07644 | $ 0.1510 | ||||||||
| Unrecaptured Section 1250 gain (in dollars per share) | $ 0.00 | $ 0.06428 | $ 0.0634 | ||||||||
| Distribution reported for 1099-DIV purposes (in dollars per share) | $ 2.30000 | $ 2.14000 | $ 2.0500 | ||||||||
| Distributions declared per common share outstanding (in dollars per share) | $ 0.5750 | $ 0.4486 | $ 0.7014 | $ 0.575 | $ 0.535 | $ 0.535 | $ 0.535 | $ 0.535 | $ 2.30000 | $ 2.14000 | $ 2.0500 |
| REIT distribution requirement (as a percent) | 90.00% | ||||||||||
| Provision (benefit) for income taxes | |||||||||||
| Current | $ (4,080,000) | $ 2,459,000 | $ 2,166,000 | ||||||||
| Deferred | (27,057,000) | 2,742,000 | (3,885,000) | ||||||||
| Income tax expense (benefit) | (31,137,000) | 5,201,000 | (1,719,000) | ||||||||
| Income tax expense related to the noncontrolling interest share of net income | 0 | 2,300,000 | 1,700,000 | ||||||||
| Canadian income tax benefit included in consolidated benefit for income taxes | $ (500,000) | $ 300,000 | $ 2,000,000 | ||||||||
| X | ||||||||||
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- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of foreign current income tax expense or benefit and foreign deferred income tax expense or benefit pertaining to Income or Loss from continuing foreign operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to noncontrolling interest income or expense that is exempt from income taxes under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents details pertaining to distribution reported for 1099-DIV purposes. No definition available.
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- Definition
Represents the minimum percentage of estimated taxable income required to be distributed to shareholders for to maintain REIT status. No definition available.
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- Definition
Represents details pertaining to tax treatment of distributions of long-term capital gain per common share. No definition available.
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- Definition
Represents details pertaining to tax treatment of distributions of ordinary income per common share. No definition available.
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- Definition
Represents details pertaining to tax treatment of distributions of unrecaptured Section 1250 gain per common share. No definition available.
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- Details
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