Loans Receivable - Allowance For Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses at January 1, 2020	$ 1,718	$ 5,437
Financing receivable, allowance for credit loss	1,791	1,718
Provision for expected credit losses	73	(3,719)
Allowance for expected credit losses at September 30, 2020	1,791	1,718
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses at January 1, 2020	1,362	1,683
Financing receivable, allowance for credit loss	1,100	1,362
Provision for expected credit losses	(262)	(321)
Allowance for expected credit losses at September 30, 2020	1,100	1,362
Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses at January 1, 2020	356	3,754
Financing receivable, allowance for credit loss	691	356
Provision for expected credit losses	335	(3,398)
Allowance for expected credit losses at September 30, 2020	$ 691	$ 356