Subordinated Debt Securities (Narrative) (Details) - USD ($)
$ in Millions |
|
|
12 Months Ended |
120 Months Ended |
|
Aug. 23, 2007 |
Jun. 21, 2005 |
Dec. 31, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
| Subordinated Debt [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Long-term debt, gross |
|
|
$ 56.7
|
|
$ 56.7
|
| Hallmark Statutory Trust I [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Long-term debt, gross |
|
$ 30.9
|
$ 30.9
|
|
|
| Debt instrument, maturity date |
|
Jun. 15, 2035
|
|
|
|
| Proceeds from issuance of trust preferred securities |
|
$ 30.0
|
|
|
|
| Proceeds from issuance of common stock |
|
$ 0.9
|
|
|
|
| Subordinated borrowing, interest rate |
|
|
3.76%
|
7.725%
|
|
| Debt instrument interest rate fixed to floating date |
|
Jun. 15, 2015
|
|
|
|
| Debt instrument, description of variable rate basis |
|
|
interest adjusts quarterly to the three-month LIBOR rate plus 3.25 percentage points
|
|
|
| Hallmark Statutory Trust I [Member] | Subordinated Debt [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Long-term debt, gross |
|
$ 30.9
|
|
|
|
| Proceeds from issuance of trust preferred securities |
|
$ 30.0
|
|
|
|
| Hallmark Statutory Trust I I [Member] | Subordinated Debt [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Long-term debt, gross |
$ 25.8
|
|
$ 25.8
|
|
|
| Debt instrument, maturity date |
|
|
Sep. 15, 2037
|
|
|
| Proceeds from issuance of trust preferred securities |
25.0
|
|
|
|
|
| Proceeds from issuance of common stock |
$ 0.8
|
|
|
|
|
| Subordinated borrowing, interest rate |
|
|
8.28%
|
|
|
| Debt instrument interest rate fixed to floating date |
|
|
Sep. 15, 2017
|
|
|
| Debt instrument, description of variable rate basis |
|
|
three-month LIBOR rate plus 2.90 percentage points
|
|
|
| London Interbank Offered Rate (LIBOR) [Member] | Hallmark Statutory Trust I [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Debt instrument, basis spread on variable rate |
|
|
3.25%
|
|
|
| London Interbank Offered Rate (LIBOR) [Member] | Hallmark Statutory Trust I I [Member] | Subordinated Debt [Member] |
|
|
|
|
|
| Subordinated Borrowing [Line Items] |
|
|
|
|
|
| Debt instrument, basis spread on variable rate |
|
|
2.90%
|
|
|