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Equity (Dividends) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Dividends [Abstract] |  |  |
Operating loss carryforwards |  | $ 460,600 |
Common stock dividends | $ 32,815 | $ 25,324 | $ 12,333
Common stock dividends paid (in dollars per share) | $ 0.43 | $ 0.39 |
Capital gains distribution percentage | 100.00% | 100.00% |
Unrecaptured Section 1250 gain percentage |  | 34.01% |
Common Stock |  |  |
Dividends [Abstract] |  |  |
Capital gains distribution percentage |  | 100.00% |
Unrecaptured Section 1250 gain percentage |  | 34.01% |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + 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=120397183&loc=d3e187085-122770 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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