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Mortgage Loans on Real Estate (Rollforward of Allowance for Loan Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning allowance balance	$ (8,239)
Ending allowance balance	(9,179)	$ (8,239)
Specific Allowance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning allowance balance	(229)	(1,418)	$ (1,327)
Charge-offs	0	852	0
Recoveries	0	1,592	631
Change in provision for credit losses	0	(1,255)	(722)
Ending allowance balance	(229)	(229)	(1,418)
General Allowance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning allowance balance	(8,010)	(6,100)	(7,100)
Charge-offs	0	0	0
Recoveries	0	0	0
Change in provision for credit losses	(940)	(1,910)	1,000
Ending allowance balance	$ (8,950)	$ (8,010)	$ (6,100)

X

- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

+ References

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-Publisher FASB
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-Topic 944
-SubTopic 310
-Section 45
-Paragraph 4
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X

- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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