Fair Value Disclosures - Financial Assets Carrying Value Rollforward (Details) - USD ($)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Total level 3 assets
Transfers from Level 1 to Level 2 financial assets	$ 0	$ 0
Transfers from Level 2 to Level 1 financial assets	0	0
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	1,208,000	2,409,000
Total gains (realized/unrealized) included in earnings		(13,000)
Net unrealized (losses) gains included in other comprehensive income		13,000
Purchases		232,000
Sales		(332,000)
Transfers out		(1,101,000)
Balance, end of period		1,208,000
Fixed maturity securities \| States, municipalities and political subdivisions
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	0	1,101,000
Total gains (realized/unrealized) included in earnings		0
Net unrealized (losses) gains included in other comprehensive income		0
Purchases		0
Sales		0
Transfers out		(1,101,000)
Balance, end of period		0
Fixed maturity securities \| Corporate
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	1,208,000	1,308,000
Total gains (realized/unrealized) included in earnings	(9,000)	(13,000)
Net unrealized (losses) gains included in other comprehensive income	(11,000)	13,000
Purchases	0	232,000
Sales	(95,000)	(332,000)
Transfers out	(73,000)	0
Balance, end of period	$ 1,020,000	$ 1,208,000

Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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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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Line items represent financial 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.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Amount of gain (loss) recognized in other comprehensive income (loss) 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Amount of purchases 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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Amount of sale 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value 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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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