Income Taxes (Details 1) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets
Unearned premium reserve reduction	$ 17,402	$ 15,721
Compensation accruals	13,737	14,765
Impaired securities	7,635	3,327
Other comprehensive income - net funded status of pension and other postretirement benefit obligations	6,375	7,009
Discounting of unpaid claims and claim expense tax reserves	3,213	4,090
Postretirement benefits other than pensions	664	870
Other, net	1,189	0
Total gross deferred tax assets	50,215	45,782
Deferred tax liabilities
Other comprehensive income - net unrealized gains on fixed maturities and equity securities	112,934	185,011
Deferred policy acquisition costs	85,341	70,796
Life insurance future policy benefit reserve	30,177	25,914
Investment related adjustments	18,709	20,064
Intangible assets	4,262	4,262
Other, net	0	1,519
Total gross deferred tax liabilities	251,423	307,566
Net deferred tax liability	$ 201,208	$ 261,784