Financial Derivatives (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Derivative [Line Items]
Written credit derivative spread threshold	20.00%		20.00%
Consumer Loan Securitization - November 2020 | Participation in Multi-Seller Consumer Loan Securitization [Member]
Derivative [Line Items]
Company's current percentage ownership of jointly owned entity	56.30%		(3800000.00%)
Credit Default Swap, Selling Protection [Member]
Derivative [Line Items]
Credit risk derivative in excess of threshold, at fair value, net	$ (38)
Total net up-front payments received	$ 800	$ 800
Minimum
Derivative [Line Items]
Spread on written credit derivatives	12.37%		11.27%
Upfront points on written credit derivative in excess of threshold	55.4		55.4
Maximum
Derivative [Line Items]
Spread on written credit derivatives	22.05%		14.11%
Upfront points on written credit derivative in excess of threshold	85.2		85.2