Unaudited Selected Quarterly Financial Information (Schedule of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Unaudited Selected Quarterly Financial Information [Abstract] | |||||||||||
| Total revenue | $ 90,071 | $ 93,684 | $ 97,197 | $ 91,450 | $ 88,004 | $ 81,417 | $ 80,836 | $ 87,109 | $ 372,402 | $ 337,366 | $ 389,428 |
| Total expense | 84,984 | 83,849 | 87,922 | 83,761 | 82,404 | 76,689 | 78,794 | 80,697 | 340,516 | 318,584 | 378,348 |
| Income (loss) before tax | 5,087 | 9,835 | 9,275 | 7,689 | 5,600 | 4,728 | 2,042 | 6,412 | 31,886 | 18,782 | 11,080 |
| Income tax expense (benefit) | 1,641 | 3,137 | 2,899 | 2,346 | 1,833 | 1,265 | 391 | 1,864 | 10,023 | 5,353 | 2,835 |
| Net income (loss) | $ 3,446 | $ 6,698 | $ 6,376 | $ 5,343 | $ 3,767 | $ 3,463 | $ 1,651 | $ 4,548 | 21,863 | 13,429 | 8,245 |
| Net income (loss) attributable to Hallmark Financial Services, Inc. | $ 21,863 | $ 13,429 | $ 8,245 | ||||||||
| Basic earnings (loss) per share: | $ 0.18 | $ 0.35 | $ 0.33 | $ 0.28 | $ 0.20 | $ 0.18 | $ 0.09 | $ 0.24 | $ 1.14 | $ 0.70 | $ 0.43 |
| Diluted earnings (loss) per share: | $ 0.17 | $ 0.35 | $ 0.33 | $ 0.28 | $ 0.19 | $ 0.18 | $ 0.09 | $ 0.23 | $ 1.13 | $ 0.69 | $ 0.43 |