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Equity - Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 11, 2020 | Aug. 26, 2020 | May 28, 2020 | Mar. 26, 2020 | Dec. 11, 2019 | Aug. 28, 2019 | May 24, 2019 | Mar. 21, 2019 | Dec. 06, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Equity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Dividend per share (in dollars per share) | $ 0.06 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.05 | $ 0.04 | $ 0.04 | $ 0.04 | $ 0.04 | $ 0.21 | $ 0.17 | $ 0.04
Dividends declared | $ 8,933 | $ 7,244 | $ 7,182 | $ 7,184 | $ 7,371 | $ 5,564 | $ 6,233 | $ 5,896 | $ 5,838 |  |  |

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- Definition Aggregate dividends declared 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 paid and unpaid common stock dividends declared with the form of settlement in cash. + 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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