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Loans and Investments, Impaired Loans and Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Changes in allowance for loan losses
Allowance at beginning of period	$ 58,733	$ 81,256	$ 62,783	$ 83,712
Provision for loan losses	2,218	2,000	3,868	2,000
Recoveries of reserves			(2,527)	(2,456)
Charge-offs			(3,173)
Allowance at end of period	60,951	83,256	60,951	83,256
Net carrying value of loans sold		$ 34,800		34,800
Mezzanine loans
Changes in allowance for loan losses
Recoveries of reserves				(1,800)
Bridge loans
Changes in allowance for loan losses
Provision for loan losses	$ 1,700		$ 1,700
Recoveries of reserves				$ (700)

X

- Definition

Represents the gross amount charged against earnings during the period as credit losses (bad debt expense) based on review of the loan and lease portfolio and application of the methodology for estimating credit losses.

+ References

No definition available.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

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-Publisher FASB
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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 loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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- Definition

Amount of decrease in investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, from sale.

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