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Consolidated Statement of Stockholders' Equity (Parenthetical) - $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended
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Oct. 21, 2020 | Jul. 22, 2020 | Apr. 29, 2020 | Jan. 22, 2020 | Oct. 23, 2019 | Jul. 24, 2019 | Apr. 24, 2019 | Jan. 23, 2019 | Oct. 24, 2018 | Jul. 24, 2018 | Apr. 25, 2018 | Jan. 24, 2018 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Statement of Stockholders' Equity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared per common share (in usd per share) | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.19 | $ 0.19 | $ 0.18 | $ 0.18 | $ 0.17 | $ 0.15 | $ 0.15 | $ 0.15 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.20 | $ 0.29 | $ 0.19 | $ 0.18 | $ 0.18 | $ 0.80 | $ 0.84 | $ 0.72

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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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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration