Loans Receivable and Other Lending Investments, net (Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Financing Receivables
Allowance for loan losses at beginning of period				$ 4,769
Provision for (recovery of) loan losses	$ 22,578	$ (2,158)		22,713	$ (5,800)
Allowance for loan losses at end of period	3,033			3,033
Held to Maturity Debt Securities
Allowance for loan losses at beginning of period	2,415	2,685	$ 3,093	2,304	3,093
(Recovery of) Provision for loan losses	23,599	(292)		23,710	(700)
Charge offs	(25,000)			(25,000)
Allowance for loan losses at end of period	1,014	2,393	2,685	1,014	2,393
Total
Allowance for loan losses at beginning of period	4,932	8,060	12,020	4,769	12,020
(Recovery of) Provision for loan losses	23,101	(1,818)		23,264	(5,778)
Charge offs	(25,000)			(25,000)
Allowance for loan losses at end of period	3,033	6,242	8,060	3,033	6,242
Increase to reserves for loan losses						$ 100
Provision for (recovery of) loan losses	22,600	(2,200)		22,700	(5,800)
Accounts Payable, Accrued Expenses and Other Liabilities
Total
Provision for ( recovery of) unfunded commitments			(400)
Construction Loans
Financing Receivables
Allowance for loan losses at beginning of period	1,252	2,893	6,541	1,213	6,541
Provision for (recovery of) loan losses	(391)	(1,253)		(352)	(4,901)
Allowance for loan losses at end of period	861	1,640	2,893	861	1,640
Loans
Financing Receivables
Allowance for loan losses at beginning of period	674	1,815	1,643	676	1,643
Provision for (recovery of) loan losses	(224)	(196)		(226)	(24)
Allowance for loan losses at end of period	450	1,619	1,815	450	1,619
Specific receivables
Financing Receivables
Allowance for loan losses at beginning of period	591	667	743	576	743
Provision for (recovery of) loan losses	117	(77)		132	(153)
Allowance for loan losses at end of period	$ 708	$ 590	$ 667	$ 708	$ 590

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Credit Loss, Expense (Reversal)

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Financing Receivable And Other Lending Investments, Allowance For Credit Loss

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Loan Losses for Write Offs

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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Amount of writeoff of investment in debt security, measured at amortized cost (held-to-maturity), charged against allowance for credit loss.

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Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity).

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