Investments (Schedule of Fair Value of Fixed Maturity Investments Available for Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost	$ 0	$ 15,943
Fixed maturity investments available-for-sale, Fair value	$ 0	17,813
Fixed maturity investments
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost		15,943
Gross Unrealized Gains		1,870
Gross Unrealized Losses		0
Fixed maturity investments available-for-sale, Fair value		17,813
Non-Credit Other-Than-Temporary Impairments		550
Agency mortgage-backed
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost		143
Gross Unrealized Gains		7
Gross Unrealized Losses		0
Fixed maturity investments available-for-sale, Fair value		150
Non-Credit Other-Than-Temporary Impairments		0
Non-agency mortgage-backed
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost		7,005
Gross Unrealized Gains		1,523
Gross Unrealized Losses		0
Fixed maturity investments available-for-sale, Fair value		8,528
Non-Credit Other-Than-Temporary Impairments		550
Commercial mortgage-backed
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost		6,578
Gross Unrealized Gains		293
Gross Unrealized Losses		0
Fixed maturity investments available-for-sale, Fair value		6,871
Non-Credit Other-Than-Temporary Impairments		0
Asset-backed
Investment [Line Items]
Fixed maturity investments available-for-sale, Amortized cost		2,217
Gross Unrealized Gains		47
Gross Unrealized Losses		0
Fixed maturity investments available-for-sale, Fair value		2,264
Non-Credit Other-Than-Temporary Impairments		$ 0

Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 12
-Sentence Column A

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Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as available-for-sale that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aaa)
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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Amount of debt securities categorized neither as held-to-maturity nor trading.

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