Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Net-of-Tax Amount
December 31, 2014	$ 4,011
June 30, 2015	2,568
Accumulated Net Investment Gain (Loss) Attributable to Parent
Pre-Tax Amount
December 31, 2014	6,537
Changes in net unrealized gains on investments	(2,363)
Reclassification adjustment for realized losses	11
June 30, 2015	4,185
Tax (Expense) Benefit
December 31, 2014	(2,526)
Changes in net unrealized gains on investments	913
Reclassification adjustment for realized losses	(4)
June 30, 2015	(1,617)
Net-of-Tax Amount
December 31, 2014	4,011
Changes in net unrealized gains on investments	(1,450)
Reclassification adjustment for realized losses	(7)
June 30, 2015	$ 2,568