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Equity, Capital and Other Interests - Changes in the Company 's Issued and Outstanding Common Shares and Units (Details) - shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Equity Capital And Other Interests [Abstract] |  |  |
Common Stock, Shares, Outstanding | 369,405,161 | 368,018,082 | 365,870,924
Common Shares Issued: |  |  |
Conversion of OP Units | 313,940 | 131,477 | 1,149,284
Exercise of share options | 1,745,050 | 1,056,388 | 846,137
Employee Share Purchase Plan (ESPP) | 48,131 | 75,414 | 68,286
Restricted share grants, net | 158,602 | 123,800 | 83,451
Common Stock, Shares, Outstanding | 371,670,884 | 369,405,161 | 368,018,082
Units |  |  |
Total Units Outstanding | 13,904,035 | 13,768,438 | 14,626,075
Restricted unit grants, net | 141,220 | 267,074 | 291,647
Conversion of OP Units to Common Shares | (313,940) | (131,477) | (1,149,284)
Total Units Outstanding | 13,731,315 | 13,904,035 | 13,768,438
Common Shares And Units Outstanding | 385,402,199 | 383,309,196 | 381,786,520
Units Ownership Interest in Operating Partnership | 3.60% | 3.60% | 3.60%

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- Definition Number of all classes of common stock held by shareholders, which is net of related treasury stock, and number of all Operating Partnership Units held by various individuals and entities that contributed their properties to the Operating Partnership. + References No definition available. + Details
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- Definition Common Shares Issued. + References No definition available. + Details
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- Definition Represents the Equity of the Parent Company and the Capital of the Operating Partnership as well as the interests of Partially Owned and Limited Partners. + References No definition available. + Details
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- Definition Number of units issued during the period as a result of a long-term incentive plan. + References No definition available. + Details
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- Definition The number of restricted shares granted during the reporting period, net of cancellations. + References No definition available. + Details
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- Definition OP Units converted into shares of stock during the period. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Subject to certain exceptions, this unit can be exchanged for Common Shares on a one-for-one basis. + References No definition available. + Details
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- Definition Units. + References No definition available. + Details
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- Definition Units outstanding. + References No definition available. + Details
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- Definition Represents the noncontrolling interests (comprised of Units and LTIP Units) ownership interest in the Operating Partnership. + References No definition available. + Details
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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