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Investments (Impaired Mortgage Loans) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014		Dec. 31, 2014
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		$ 21,403			$ 21,403			$ 17,593
Recorded Investment		20,834			20,834			17,027
Related Allowance		710			710			816
Carrying Value		20,124			20,124			16,211
Average Investment	[1]	18,859	$ 24,029		17,925	$ 29,561
Interest Income		265	251		790	1,092
Impaired mortgage loans with valuation allowance recorded
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		12,969			12,969			10,279
Recorded Investment		12,460			12,460			10,316
Related Allowance		710			710			816
Carrying Value		11,750			11,750			9,500
Average Investment		12,495	14,870	[1]	11,392	14,705	[1]
Interest Income		194	26		578	478
Impaired mortgage loans with no valuation allowance recorded
Financing Receivable Impaired [Line Items]
Unpaid Principal Balance		8,434			8,434			7,314
Recorded Investment		8,374			8,374			6,711
Related Allowance		0			0			0
Carrying Value		8,374			8,374			$ 6,711
Average Investment		6,364	9,159	[1]	6,533	14,856	[1]
Interest Income		$ 71	$ 225		$ 212	$ 614
[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.

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 15



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