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Fair Value Measurements (Changes in Fair Value of Securities Using Level 3 Inputs) (Details) - Common Stock [Member] - AFS Fixed Maturity Securities [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, December 31, 2015	$ 3,272
Total net (losses) gains for the period included in other comprehensive income	0
Total net (losses) gains for the period included in net income	0
Purchases	1,126
Sales	(1,126)
Issuances	0
Settlements	0
Transfers into Level 3	0
Transfers out of Level 3	0
Fair Value, March 31, 2016	$ 3,272

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Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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