Bond portfolio reclassified as held-to-maturity during the period.

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- Definition

Represents the percentage increase in investments during the period over the prior period end.

+ References

No definition available.

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- Definition

Percentage of debt securities to total debt portfolio.

+ References

No definition available.

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Percentage of equity holdings to total equity portfolio.

+ References

No definition available.

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Ratio of available-for-sale securities to total investments.

+ References

No definition available.

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- References

No definition available.

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- Definition

The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.3(a))

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 325

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6485959&loc=d3e22529-158502

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- Definition

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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No definition available.

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- Definition

The increase (decrease), resulting in a gain, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period.

+ References

No definition available.

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Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Investments [Abstract]
Increase in total investments			$ 55,600
Percentage increase in investments			16.80%
Ratio of available-for-sale securities to total investments	98.00%		98.00%		98.00%
Schedule of Available-for-sale Securities [Line Items]
Realized investment losses charged to operations	$ 1,126	$ 659	$ 3,743	$ 4,047
Bond portfolio reclassified as held-to-maturity			$ 6,400		$ 7,400
Diverse Industries Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Percentage of debt securities to total debt portfolio			80.00%		77.00%
United States Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Percentage of debt securities to total debt portfolio			20.00%		23.00%
Diverse Industries Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Realized investment losses charged to operations				$ 0
Percentage of equity holdings to total equity portfolio			86.00%		88.00%
Diverse Industries Equity Securities [Member] \| Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Realized investment losses charged to operations			$ (100)
Mutual Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Percentage of equity holdings to total equity portfolio			14.00%		12.00%