| 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 | 263.9 | 235.0 | 242.8 | 258.3 | 234.5 | 194.7 | 176.0 | 168.8 |
| Interest income on investments | | 18.4 | 19.0 | 22.3 | 21.2 | 16.3 | 14.5 | 14.9 |
| | 293.8 | 254.8 | 263.0 | 282.9 | 257.3 | 212.4 | 191.8 | 184.7 |
| Interest expense: |
| Interest on deposits | | 12.3 | 30.5 | 50.5 | 34.6 | 19.2 | 15.3 | 11.5 |
| | 30.3 | 18.1 | 37.2 | 59.0 | 43.4 | 26.8 | 22.1 | 18.2 |
| Net interest income | 263.5 | 236.6 | 225.8 | 223.9 | 213.9 | 185.6 | 169.7 | 166.5 |
| Provision for loan losses | | -4.3 | 36.0 | 15.8 | 19.5 | 9.0 | 5.8 | 2.2 |
| Net interest income after provision for loan losses | 263.5 | 240.9 | 189.8 | 208.0 | 194.4 | 176.7 | 163.8 | 164.4 |
| Deposit and loan fees | 12.1 | | | | | | | 9.3 |
| Credit and debit card fees | 18.1 | | | | | | | |
| Gain on sale of investments, net | | | | | | | | 0.0 |
| Other non-interest income | | 100.1 | 103.9 | 101.1 | 97.1 | 98.7 | 88.9 | 74.0 |
| Total non-interest income | 30.2 | 100.1 | 103.9 | 101.1 | 97.1 | 98.7 | 88.9 | 83.3 |
| Non-interest expenses | 184.7 | 186.1 | 187.4 | 189.0 | 186.5 | 174.0 | 163.6 | 159.1 |
| Pre-tax income | 156.8 | 154.9 | 106.3 | 120.2 | 105.0 | 101.4 | 89.1 | 88.6 |
| Income taxes | 36.3 | 36.3 | 24.9 | 28.1 | 22.6 | 33.3 | 31.3 | 31.1 |
| Tax rate | 23.1% | 23.5% | 23.4% | 23.4% | 21.5% | 32.9% | 35.2% | 35.1% |
| Minority interest | 0.0 | 0.0 | 0.0 | -0.1 | | | | |
| Net income | 120.5 | 118.5 | 81.4 | 92.0 | 82.4 | 68.1 | 57.8 | 57.5 |
| Net margin | 41.0% | 34.8% | 27.7% | 29.7% | 28.3% | 24.7% | 22.9% | 23.2% |
| |
| Basic EPS | $4.88 | $4.73 | $3.19 | $3.59 | $3.18 | $2.62 | $2.23 | $2.20 |
| Diluted EPS | $4.88 | $4.73 | $3.19 | $3.59 | $3.18 | $2.62 | $2.23 | $2.20 |
| |
| Shares outstanding (basic) | 24.7 | 25.0 | 25.5 | 25.6 | 25.9 | 25.9 | 25.9 | 26.2 |
| Shares outstanding (diluted) | 24.7 | 25.0 | 25.5 | 25.6 | 25.9 | 25.9 | 25.9 | 26.2 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |