| 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 | 169.3 | 141.6 | 145.4 | 165.5 | 149.9 | 126.9 | 118.2 | 114.2 |
| Interest income on investments | 21.8 | 14.3 | 20.1 | 26.4 | 21.9 | 19.2 | 12.6 | 10.4 |
| | 194.5 | 158.0 | 169.9 | 197.7 | 176.4 | 149.6 | 133.5 | 125.8 |
| Interest expense: |
| Interest on deposits | 26.0 | 12.4 | 25.8 | 37.1 | 24.2 | 15.1 | 12.5 | 13.1 |
| Interest on borrowings | 11.7 | 3.8 | 15.8 | 26.2 | 19.1 | 14.4 | 10.0 | 7.7 |
| | 38.5 | 16.6 | 42.5 | 64.2 | 44.1 | 30.1 | 23.0 | 21.8 |
| Net interest income | 156.0 | 141.4 | 127.4 | 133.4 | 132.3 | 119.5 | 110.5 | 104.0 |
| Provision for loan losses | -1.3 | -4.8 | 12.3 | 1.6 | 1.6 | 2.6 | 5.7 | 1.1 |
| Net interest income after provision for loan losses | 157.3 | 146.3 | 115.1 | 131.8 | 130.7 | 116.9 | 104.8 | 102.9 |
| Deposit and loan fees | 3.2 | 2.7 | 2.7 | 3.7 | 3.6 | 3.7 | 3.7 | 3.9 |
| Gain on sale of investments, net | 2.8 | 4.3 | 4.0 | 4.0 | 2.5 | 3.2 | 3.2 | 2.4 |
| Other non-interest income | 56.7 | 80.4 | 92.7 | 59.4 | 56.0 | 57.9 | 58.2 | 52.0 |
| Total non-interest income | 62.6 | 87.4 | 99.4 | 67.1 | 62.1 | 64.8 | 65.1 | 58.3 |
| Non-interest expenses | 128.7 | 135.5 | 125.4 | 110.7 | 106.2 | 104.1 | 101.1 | 96.9 |
| Equity in earnings | | | | | | | | |
| Pre-tax income before non-recurring items | 91.2 | 98.2 | 89.2 | 88.2 | 86.5 | 77.0 | 68.0 | 65.4 |
| Non-recurring items | | | | | -0.2 | -0.6 | -0.9 | 1.0 |
| Pre-tax income | 91.2 | 98.2 | 89.2 | 88.2 | 86.7 | 77.6 | 68.9 | 64.3 |
| Income taxes | 19.5 | 21.3 | 19.3 | 19.1 | 18.3 | 31.7 | 22.4 | 20.9 |
| Tax rate | 21.4% | 21.7% | 21.7% | 21.6% | 21.1% | 40.8% | 32.5% | 32.4% |
| Net income | 71.5 | 76.6 | 69.7 | 69.0 | 68.3 | 45.8 | 46.4 | 43.5 |
| Net margin | 32.5% | 32.8% | 32.5% | 34.7% | 35.4% | 25.2% | 27.3% | 27.0% |
| |
| Basic EPS | $4.14 | $4.43 | $4.03 | $3.98 | $3.95 | $2.66 | $2.72 | $2.58 |
| Diluted EPS | $4.11 | $4.39 | $4.00 | $3.96 | $3.93 | $2.64 | $2.70 | $2.55 |
| |
| Shares outstanding (basic) | 17.2 | 17.3 | 17.3 | 17.3 | 17.3 | 17.2 | 17.1 | 16.9 |
| Shares outstanding (diluted) | 17.4 | 17.5 | 17.4 | 17.4 | 17.4 | 17.3 | 17.2 | 17.1 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |