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Federal Income Taxes - Schedule of Tax Status of Dividends (Details) - $ / shares | 3 Months Ended | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Contingency [Line Items] |  |  |  |  |  |
Total (in dollars per share) |  | $ 0.15 | $ 0.29 | $ 0.60 | $ 0.29 | $ 1.13
Characterization Of Distributions For Federal Income Tax Purposes |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Qualified dividend (in dollars per share) |  |  |  | 0.010 | 0 | 0
Capital gain (in dollars per share) |  |  |  | 0.040 | 0.060 | 0.240
Total (in dollars per share) | [1] |  |  | $ 0.600 | $ 0.580 | $ 1.060
Qualified dividend |  |  |  | 1.00% | 0.00% | 0.00%
Capital gain |  |  |  | 7.00% | 10.00% | 23.00%
Total | [1] |  |  | 100.00% | 100.00% | 100.00%
Non-Section 199A | Characterization Of Distributions For Federal Income Tax Purposes |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Ordinary income (in dollars per share) |  |  |  |  |  |
Ordinary income |  |  |  |  |  |
Section 199A | Characterization Of Distributions For Federal Income Tax Purposes |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Ordinary income (in dollars per share) |  |  |  | $ 0.550 | $ 0.520 | $ 0.820
Ordinary income |  |  |  | 92.00% | 90.00% | 77.00%
[1] | The fourth quarter 2021 regular dividend was $0.15 per common share, all of which is allocable to 2021. The fourth quarter 2019 regular dividend was $0.29 per common share, all of which is allocable to 2020.

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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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