Loans Receivable - Allowance For Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses, beginning of period	$ 2,175	$ 1,970	$ 1,718	$ 5,437
Change in expected credit losses	(183)	(233)	274	(3,700)
Allowance for expected credit losses, end of period	1,992	1,737	1,992	1,737
Real estate loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses, beginning of period	1,228	1,501	1,362	1,683
Change in expected credit losses	(66)	(72)	(200)	(254)
Allowance for expected credit losses, end of period	1,162	1,429	1,162	1,429
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for expected credit losses, beginning of period	947	469	356	3,754
Change in expected credit losses	(117)	(161)	474	(3,446)
Allowance for expected credit losses, end of period	$ 830	$ 308	$ 830	$ 308