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Earnings Per Share (Narrative) (Details) - shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |  |
Weighted average nonvested restricted shares outstanding | 2,800,000 | 2,800,000 | 2,900,000 | 2,800,000
Weighted average number of OP units outstanding | 537,000 | 553,000 | 537,000 | 553,000
Market Performance-Based Equity Award [Member] | Chief Executive Officer [Member] |  |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |  |
Shares issuable under Stock incentive plan | 0 | 0 | 0 | 0

X
- Definition Share based compensation arrangement by share based payment award equity instruments other than options issuable during period. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Weighted average number of operating partnership units outstanding. + References No definition available. + Details
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Balance Type: | na
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 68B -URI http://asc.fasb.org/extlink&oid=121326447&loc=SL5498026-109256 + Details
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- Details
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- Details
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