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Stockholders' Equity Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended
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Sep. 01, 2019 | Jun. 03, 2019 | Mar. 01, 2019 | Sep. 01, 2018 | Jun. 01, 2018 | Mar. 01, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Equity [Abstract] |  |  |  |  |  |  |  |  |  |
Dividends declared per common share (in dollars per Share) | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.075 | $ 0.225 | $ 0.225
Dividends | $ 1,336 | $ 1,365 | $ 1,360 | $ 1,436 | $ 1,433 | $ 1,207 |  |  |  |

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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=27012166&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=27012166&loc=d3e187085-122770 + Details
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