| 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 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Interest income: |
| Interest income on loans | 170.8 | 147.9 | 143.5 | 149.9 | 130.7 | 106.3 | 92.3 | 83.6 |
| Interest income on investments | 24.5 | 19.1 | 17.5 | 18.5 | 21.6 | 23.8 | 22.9 | 21.9 |
| | 196.1 | 167.2 | 161.3 | 168.8 | 152.7 | 130.1 | 115.2 | 105.5 |
| Interest expense: |
| Interest on deposits | 23.0 | 8.1 | 17.8 | 28.5 | 19.1 | 11.1 | 8.5 | 7.3 |
| | 24.5 | 8.2 | 19.4 | 36.4 | 29.9 | 17.5 | 12.5 | 10.1 |
| Net interest income | 220.6 | 175.4 | 180.7 | 205.2 | 122.9 | 112.6 | 102.7 | 95.3 |
| Provision for loan losses | | | | | 8.9 | 13.4 | 9.6 | 7.4 |
| Net interest income after provision for loan losses | 220.6 | 175.4 | 180.7 | 205.2 | 113.9 | 99.3 | 93.1 | 87.9 |
| Deposit and loan fees | | | | | | | | 7.7 |
| Gain on sale of investments, net | | | | | | | | 2.0 |
| Other non-interest income | 46.3 | 46.9 | 43.2 | 40.4 | 36.5 | 34.7 | 35.8 | 20.6 |
| Total non-interest income | 46.3 | 46.9 | 43.2 | 40.4 | 36.5 | 34.7 | 35.8 | 30.3 |
| Non-interest expenses | 129.4 | 112.8 | 109.3 | 102.8 | 100.9 | 90.5 | 84.7 | 79.4 |
| Pre-tax income before non-recurring items | 71.0 | 97.2 | 45.7 | 59.4 | 51.9 | 45.1 | 44.5 | 39.7 |
| Non-recurring items | | | | | 2.4 | 1.6 | 0.3 | 0.8 |
| Pre-tax income | 71.0 | 97.2 | 45.7 | 59.4 | 49.5 | 43.5 | 44.1 | 38.9 |
| Income taxes | 14.4 | 19.5 | 7.4 | 10.6 | 10.0 | 9.9 | 12.2 | 10.5 |
| Tax rate | 20.3% | 20.1% | 16.2% | 17.8% | 20.2% | 22.9% | 27.7% | 27.1% |
| Net income | 56.6 | 77.7 | 38.3 | 48.9 | 38.1 | 32.1 | 30.5 | 26.9 |
| Net margin | 21.2% | 34.9% | 17.1% | 19.9% | 25.3% | 23.9% | 23.7% | 22.7% |
| |
| Basic EPS | $3.68 | $4.90 | $2.39 | $3.06 | $2.39 | $2.13 | $2.11 | $1.91 |
| Diluted EPS | $3.66 | $4.88 | $2.39 | $3.05 | $2.39 | $2.13 | $2.10 | $1.90 |
| |
| Shares outstanding (basic) | 15.4 | 15.8 | 16.0 | 16.0 | 15.9 | 15.0 | 14.4 | 14.1 |
| Shares outstanding (diluted) | 15.5 | 15.9 | 16.1 | 16.0 | 16.0 | 15.1 | 14.5 | 14.1 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |