Property and Casualty Unpaid Claims and Claim Expenses (Details 3) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability for Claims and Claims Adjustment Expense, Total		$ 329,888	[1]	$ 323,720
Property, Liability and Casualty Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense, Net	[2]	246,558		251,237	$ 267,357	$ 261,702
Reinsurance Recoverables, Including Reinsurance Premium Paid		61,199
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claims Adjustment Expense, Accumulated Unallocated Claim Adjustment Expense		22,120
Liability For Other Than Short Duration And Unallocated Claims Adjustment Expenses		44,251
Liability for Claims and Claims Adjustment Expense, Total	[3]	307,757		$ 301,569	$ 311,097	$ 275,809
Property, Liability and Casualty Insurance Product Line [Member] | Homeowners [Member]
Reinsurance Recoverables, Including Reinsurance Premium Paid		375
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net		32,314
Property, Liability and Casualty Insurance Product Line [Member] | Auto Liability [Member]
Reinsurance Recoverables, Including Reinsurance Premium Paid		50,959
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net		182,162
Property, Liability and Casualty Insurance Product Line [Member] | Auto Physical Damage [Member]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net		6,374
Property, Liability and Casualty Insurance Product Line [Member] | Other Short Duration Lines [Member]
Reinsurance Recoverables, Including Reinsurance Premium Paid		9,865
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net		3,588
Property, Liability and Casualty Insurance Product Line [Member] | Other Than Short Duration Line [Member]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claim Adjustment Expense, Other Reconciling Item	[1]	$ 22,131

[1] This line includes Retirement and Life reserves as included in the Consolidated Balance Sheet.

[2] Reserves net of anticipated reinsurance recoverables.

[3] Unpaid claims and claim expenses as reported in the Consolidated Balance Sheets also include reserves for the Life and Retirement segments of $22,131, $22,151 and $14,687 as of December 31, 2016, 2015 and 2014, respectively, in addition to Property and Casualty segment reserves.