Troubled Debt Restructurings (Narrative) (Details) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($) Investments	Dec. 31, 2020 USD ($) Investments
Troubled Debt Restructurings (Textual)
Total number of loans classified under troubled debt restructurings (TDRs) | Investments	17	20
Total sum of loans classified as troubled debt restructurings (TDRs) | $	$ 7.5	$ 8.4
Number of months previous loan payment defaulted	12 months	12 months