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Investments (Impaired Mortgage Loans) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		$ 17,453		$ 17,453		$ 17,593
Recorded Investment		16,885		16,885		17,027
Related Allowance		671		671		816
Carrying Value		16,214		16,214		16,211
Average Investment	[1]	16,921	$ 30,444	16,956	$ 32,910
Interest Income		264	330	525	841
Impaired mortgage loans with valuation allowance recorded
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		13,039		13,039		10,279
Recorded Investment		12,531		12,531		10,316
Related Allowance		671		671		816
Carrying Value		11,860		11,860		9,500
Average Investment	[1]	11,397	15,855	11,036	16,151
Interest Income		229	259	384	452
Impaired mortgage loans with no valuation allowance recorded
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		4,414		4,414		7,314
Recorded Investment		4,354		4,354		6,711
Related Allowance		0		0		0
Carrying Value		4,354		4,354		$ 6,711
Average Investment	[1]	5,524	14,589	5,920	16,759
Interest Income		$ 35	$ 71	$ 141	$ 389
[1] Average recorded investment represents the average loan balances as of the beginning of period and all subsequent quarterly end of period balances.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 15



-Subparagraph (c)(1)



-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524



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