| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 8-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Interest income: |
| Interest income on loans | 111.2 | 0.0 | 73.7 | 77.3 | 74.7 | 66.8 | 58.1 | 48.7 |
| Interest income on investments | | 3.0 | 3.2 | 3.8 | 3.9 | 3.6 | 2.7 | 2.0 |
| | 117.9 | 0.0 | 77.5 | 82.9 | 80.1 | 71.2 | 61.0 | 50.8 |
| Interest on deposits | | 10.4 | 18.2 | 24.7 | 19.0 | 12.7 | 8.3 | 5.7 |
| Total interest expense | | 13.5 | 22.7 | 29.2 | 23.7 | 16.8 | 11.9 | 8.0 |
| Net interest income | 94.7 | 0.0 | 54.8 | 53.8 | 56.3 | 54.4 | 49.1 | 42.8 |
| Net interest income after provision for loan losses | 94.7 | 0.0 | 54.8 | 53.8 | 56.3 | 54.4 | 49.1 | 42.8 |
| Deposit and loan fees | 1.1 | | | | | | | 0.9 |
| Gain on sale of investments, net | | | | | | | -0.1 | |
| Other non-interest income | 2.0 | 5.7 | 2.9 | 5.2 | 3.9 | 4.6 | 2.8 | 2.6 |
| Total non-interest income | 3.0 | 5.7 | 2.9 | 5.2 | 3.9 | 4.6 | 2.7 | 3.5 |
| Non-interest expenses | 44.4 | 39.7 | 42.8 | 35.6 | 35.6 | 32.5 | 29.5 | 29.2 |
| Pre-tax income before non-recurring items | 48.0 | -4.4 | 7.3 | 22.9 | 21.2 | 25.1 | 18.3 | 13.9 |
| Non-recurring items | | | | | | | | 0.0 |
| Pre-tax income | 48.0 | -4.4 | 7.3 | 22.9 | 21.2 | 25.1 | 18.3 | 13.9 |
| Income taxes | 10.6 | -31.0 | 1.4 | 4.7 | 3.7 | 11.3 | 6.0 | 4.8 |
| Tax rate | 22.0% | 697.6% | 19.1% | 20.6% | 17.6% | 45.0% | 32.6% | 34.9% |
| Net income | 37.4 | 26.6 | 5.9 | 18.2 | 17.4 | 13.8 | 12.4 | 8.9 |
| Net margin | 38.3% | 98466.7% | 749.2% | 1780.6% | 1599.4% | 23.4% | 23.9% | 19.2% |
| |
| Basic EPS | $4.95 | | $0.76 | $2.35 | $2.26 | $1.83 | $1.67 | $1.26 |
| Diluted EPS | $4.90 | | $0.76 | $2.34 | $2.24 | $1.80 | $1.65 | $1.25 |
| |
| Shares outstanding (basic) | 7.6 | | 7.7 | 7.8 | 7.7 | 7.6 | 7.4 | 7.1 |
| Shares outstanding (diluted) | 7.6 | | 7.7 | 7.8 | 7.8 | 7.7 | 7.5 | 7.1 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |