Schedule IV (Consolidated) - Mortgage Loans on Real Estate - Carrying Amount of Mortgage Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Changes in carrying amount of mortgage loans
Balance at beginning of the year	$ 1,315	$ 11,942	$ 10,321
Additions during the year - new mortgage loans			7,798
Collections of principal	$ 1,315	10,699	6,005
Foreclosures			128
Other additions		(72)
Other			44
Balance at the end of the year		$ 1,315	$ 11,942