Investment Holding Level 4 Concentration of Credit Risk (Details) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Concentration Risk [Line Items]
Fair Value, Concentration of Risk, Investments	$ 0	$ 0
Concentration Risk, Benchmark Description	greater than 10% of the Company's stockholders' equity	greater than 10% of the Company's stockholders' equity
CALIFORNIA \| US States and Political Subdivisions Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Issuer, Percent of Invested Assets	1.00%	1.00%
CALIFORNIA \| US States and Political Subdivisions Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Issuer, Percent of Invested Assets	1.00%
Morgan Stanley [Member] \| US States and Political Subdivisions Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Issuer, Percent of Invested Assets		1.00%
Morgan Stanley [Member] \| Corporate Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Issuer, Percent of Invested Assets	1.00%
J.P. Morgan Chase [Member] \| Corporate Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Issuer, Percent of Invested Assets		1.00%
Financial Services [Member] \| US States and Political Subdivisions Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Sector, Percent of Invested Assets	8.00%
Financial Services [Member] \| Corporate Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Sector, Percent of Invested Assets		9.00%
Municipal Bonds [Member] \| US States and Political Subdivisions Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Sector, Percent of Invested Assets	16.00%	17.00%
Public Utility, Bonds [Member] \| Corporate Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Sector, Percent of Invested Assets	8.00%
Commercial Mortgage Backed Securities [Member] \| Corporate Debt Securities [Member]
Concentration Risk [Line Items]
Largest Exposure by Sector, Percent of Invested Assets		6.00%

The percent of invested assets by the Company's largest exposure by issuer.

No definition available.

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- Definition

The percent of invested assets by the Company's largest exposure by sector.

+ References

No definition available.

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- Definition

Identifies or describes the benchmark that serves as the denominator in the calculation of the percentage of concentration risk.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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-Publisher FASB
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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.

+ References

No definition available.

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This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(5))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Available-for-Sale Securities
-URI http://asc.fasb.org/extlink&oid=6505594

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