Supplemental Comprehensive Income Disclosures (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			$ (4,499)	$ (20,588)
Other comprehensive income (loss) before reclassification adjustment	$ (2,479)	$ 6,471	4,010	14,567
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(343)	0	434	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			4,444	14,567
Amounts reclassified from accumulated other comprehensive income (loss)			(85)	(1)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	7	0	4	0
Total other comprehensive (loss) income	(2,842)	6,470	4,359	14,566
Accumulated Other Comprehensive Income (Loss), Ending Balance	(140)	(6,022)	(140)	(6,022)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			(4,875)	(20,868)
Other comprehensive income (loss) before reclassification adjustment			4,010	14,567
Amounts reclassified from accumulated other comprehensive income (loss)			(81)	(1)
Total other comprehensive (loss) income			3,929	14,566
Accumulated Other Comprehensive Income (Loss), Ending Balance	(946)	(6,302)	(946)	(6,302)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			76	280
Other comprehensive income (loss) before reclassification adjustment			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive (loss) income			0	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	76	280	76	280
Derivative [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			300	0
Total other comprehensive (loss) income			430	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ 730	$ 0	730	0
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income			$ 4,359	$ 14,566