v2.4.0.6

Acquisitions of Real Estate Property (Details 7) (Cogdell Acquisition, USD $) In Millions, except Per Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 property management | Dec. 31, 2011
Pending Acquisition |  |
Ownership interest acquired (as a percent) | 100.00% | 100.00%
Number of MOBs in which ownership interest acquired | 72 |
Number of MOBs acquired and managed by property management business | 44 |
Right to receive cash per share on each outstanding share of common stock outstanding (in dollars per share) |  | $ 4.25
Right to receive cash per share on each outstanding unit of limited partnership interest outstanding (in dollars per share) |  | $ 4.25
Consideration per share for each outstanding share of preferred stock (in dollars per share) |  | $ 25
Minimum |  |
Pending Acquisition |  |
Expected investment including share of debt under a definitive agreement | 760.0 | $ 760.0
Maximum |  |
Pending Acquisition |  |
Expected investment including share of debt under a definitive agreement | 770.0 | $ 770.0

X
- Definition The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of voting equity interests acquired in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 68 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463 + Details
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- Definition Represents the consideration per share for each outstanding share of preferred stock. + References No definition available. + Details
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Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of MOBs in which ownership interest acquired by the entity in all-cash transaction. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of cash per share receivable at the option of the shareholder on each outstanding share of common stock outstanding. + References No definition available. + Details
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Data Type: | num:perShareItemType
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Period Type: | duration

X
- Definition Represents the amount of cash per share receivable at the option of the shareholder on each outstanding unit of limited partnership interest outstanding. + References No definition available. + Details
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X
- Definition Represents the number of management acquired during the period in all-cash transaction. + References No definition available. + Details
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X
- Details
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