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Federal Income Tax Reporting - Tax Components of Distributions (Details) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Tax components of the Company's common distributions paid per share      
Ordinary income (in dollars per share)   $ 0.28 $ 0.25
Capital gain (in dollars per share) $ 0.68 0.06  
Return of capital (in dollars per share)   0.02 0.11
Total (in dollars per share) $ 0.68 $ 0.36 $ 0.36
Ordinary income (as a percent)   77.51% 69.96%
Capital gain (as a percent) 100.00% 16.72%  
Return of capital (as a percent)   5.77% 30.04%
Total (as a percent) 100.00% 100.00% 100.00%
Common Stock Dividends Per Share Cash Paid Qualified Distribution   $ 0.009  
Qualified distribution as a percentage of total distribution   2.52%