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Earning Per Share and Earnings Per Unit - Computation of Net Income per Share Basic and Net Income per Share Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Earnings Per Share [Abstract] |  |  |  |
Income (loss) from continuing operations | $ 204,160 | $ 228,365 | $ 354,101 | $ 3,960,353
Allocation to Noncontrolling Interests – Operating Partnership, net | (7,354) | (8,779) | (12,765) | (152,093)
Net (income) attributable to Noncontrolling Interests – Partially Owned Properties | (765) | (781) | (1,553) | (1,545)
Preferred distributions | (773) | (772) | (1,546) | (1,545)
Income from continuing operations available to Common Shares, net of Noncontrolling Interests | 195,268 | 218,033 | 338,237 | 3,805,170
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent | 0 | 34 | 0 | (118)
Net income available to Common Shares | 195,268 | 218,067 | 338,237 | 3,805,052
Income From Continuing Operations Available To Common Shares | 202,622 | 226,812 | 351,002 | 3,957,263
Discontinued operations, net | 0 | 35 | 0 | (122)
Net Income (Loss) Available to Common Stockholders, Diluted | $ 202,622 | $ 226,847 | $ 351,002 | $ 3,957,141
Weighted average Common Shares outstanding | 366,820 | 365,047 | 366,713 | 364,820
Dilutive Op Units | 12,913 | 13,887 | 12,906 | 13,792
Long-term compensation shares/units | 2,959 | 3,131 | 2,886 | 3,400
Weighted average Common Shares outstanding | 382,692 | 382,065 | 382,505 | 382,012
Net income available to Common Shares | $ 0.53 | $ 0.60 | $ 0.92 | $ 10.43
Net income available to Common Shares | 0.53 | 0.59 | 0.92 | 10.36
Income from continuing operations available to Common Shares | 0.53 | 0.60 | 0.92 | 10.43
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share | 0 | 0 | 0 | 0
Income from continuing operations available to Common Shares | 0.53 | 0.59 | 0.92 | 10.36
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share | $ 0 | $ 0 | $ 0 | $ 0

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=96948231&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256 Reference 5: 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(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=96868048&loc=SL4569616-111683 + Details
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