Summary of Significant Accounting Policies (Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tax Treatment Of Dividend
Internal taxable income distribution policy (in percentage)	100.00%
Estimated taxable income net	$ 64,960	$ 101,184	$ 81,375
Net basis difference of assets and liabilities between tax basis and GAAP basis	$ 137,734
Ordinary Income
Tax Treatment Of Dividend
Payments of dividends net percent	100.00%	58.30%	100.00%
Long Term Capital Gain
Tax Treatment Of Dividend
Payments of dividends net percent		41.70%