SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE - Mortgage Loan Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Movement in Mortgage Loans on Real Estate
Balance, beginning of period	$ 83,135	$ 68,079
Additions during period:
New loans	133,290	53,524
Other - deferral of loan origination costs	2,559	382
Other - accretion of loan discounts, net of amortization of deferred origination costs	1,424	933
Deductions during period:
Collections of principal	(32,370)	(11,580)
Foreclosures	0	(174)
Cost of mortgages sold, net	(114,437)	(27,609)
Other - bad debt expense	(58)	(420)
Balance, end of period	$ 73,543	$ 83,135