Accounting Policies (Narrative) (Details)
$ in Millions |
|
|
12 Months Ended |
|
Aug. 23, 2007
USD ($)
|
Jun. 21, 2005
USD ($)
|
Dec. 31, 2015
USD ($)
segment
|
Dec. 31, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
|
| Number of reportable segments | segment |
|
|
3
|
|
|
| Deferred policy acquisition costs, additions |
|
|
$ 32.3
|
$ 39.1
|
$ 55.0
|
| Deferred policy acquisition costs, amortized |
|
|
(32.7)
|
(40.9)
|
(57.3)
|
| Deferred policy acquisition cost, (amortization) deferrals |
|
|
(0.4)
|
(1.8)
|
(2.3)
|
| Property and equipment, gross |
|
|
$ 17.9
|
14.8
|
|
| Property and equipment, depreciation method |
|
|
straight-line method
|
|
|
| Depreciation |
|
|
$ 1.0
|
0.7
|
1.2
|
| Property and equipment, accumulated depreciation |
|
|
13.7
|
13.2
|
|
| Policy fees |
|
|
11.2
|
$ 11.5
|
$ 13.2
|
| Hallmark Statutory Trust I [Member] |
|
|
|
|
|
| Long-term debt, gross |
|
$ 30.9
|
$ 30.9
|
|
|
| Proceeds from issuance of trust preferred securities |
|
30.0
|
|
|
|
| Minimum [Member] |
|
|
|
|
|
| Property and equipment, estimated useful lives |
|
|
3 years
|
3 years
|
|
| Maximum [Member] |
|
|
|
|
|
| Property and equipment, estimated useful lives |
|
|
10 years
|
10 years
|
|
| Subordinated Debt [Member] |
|
|
|
|
|
| Long-term debt, gross |
|
|
$ 56.7
|
$ 56.7
|
|
| Trust Preferred Securities, fair value |
|
|
$ 45.3
|
$ 47.6
|
|
| Current yield to maturity, percentage |
|
|
8.00%
|
8.00%
|
|
| Subordinated Debt [Member] | Hallmark Statutory Trust I [Member] |
|
|
|
|
|
| Long-term debt, gross |
|
30.9
|
|
|
|
| Proceeds from issuance of trust preferred securities |
|
$ 30.0
|
|
|
|
| Subordinated Debt [Member] | Hallmark Statutory Trust I I [Member] |
|
|
|
|
|
| Long-term debt, gross |
$ 25.8
|
|
$ 25.8
|
|
|
| Proceeds from issuance of trust preferred securities |
$ 25.0
|
|
|
|
|
| Standard Commercial P & C Business Unit [Member] | Quota Share Treaty Effective January 1, 2006 [Member] |
|
|
|
|
|
| Profit sharing payable |
|
|
1.7
|
|
|
| MGA Commercial Products [Member] | Quota Share Treaty Effective January 1, 2006 [Member] |
|
|
|
|
|
| Profit sharing payable |
|
|
$ 0.3
|
|
|