Investments (Details 5) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Reclassification of net realized investment (gains) losses to net income	[1]	$ 1,161	[2]	$ 2,245	[3]	$ 4,953	[2]	$ 3,341	[3]
Fixed Maturity Securities [Member]
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning of period		381,244		238,854		336,604		146,489
Change in unrealized investment gains and losses		(122,709)		80,577		(77,223)		173,802
Reclassification of net realized investment (gains) losses to net income		(3,708)		(1,640)		(4,554)		(2,500)
End of period		254,827		317,791		254,827		317,791
Equity securities [Member]
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning of period		3,384		5,695		6,988		4,618
Change in unrealized investment gains and losses		(2,532)		2,865		(3,190)		4,178
Reclassification of net realized investment (gains) losses to net income		2,547		(605)		(399)		(841)
End of period		$ 3,399		$ 7,955		$ 3,399		$ 7,955

[1] All amounts are net of tax.

[2] The pretax amounts reclassified from accumulated other comprehensive income (loss), $1,786 and $7,620, are included in net realized investment gains and losses and the related tax expenses, $625 and $2,667, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2015, respectively.

[3] The pretax amounts reclassified from accumulated other comprehensive income (loss), $3,455 and $5,140, are included in net realized investment gains and losses and the related tax expenses, $1,210 and $1,799, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2014, respectively.