| 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/A | 10-K | 10-K | 10-K |
| Interest income: |
| Interest income on investments | 26.1 | 19.4 | 11.5 | 8.2 | 8.1 | 6.9 | 6.2 | 6.8 |
| | 277.7 | 243.6 | 237.9 | 141.1 | 124.7 | 108.1 | 87.4 | 80.8 |
| Interest expense: |
| Interest on deposits | 24.9 | 13.5 | 26.9 | 22.6 | 13.9 | 8.8 | 6.3 | 5.3 |
| Interest on borrowings | 6.6 | 0.0 | 1.7 | 1.4 | 1.3 | 1.5 | 1.3 | 0.7 |
| | 34.8 | 16.2 | 29.9 | 25.4 | 46.8 | 11.4 | 8.4 | 6.8 |
| Net interest income | 312.5 | 259.8 | 267.9 | 166.5 | 108.3 | 96.7 | 78.9 | 74.1 |
| Provision for loan losses | | | | | 1.2 | 2.9 | 0.3 | 0.1 |
| Net interest income after provision for loan losses | 312.5 | 259.8 | 267.9 | 166.5 | 107.1 | 93.7 | 78.7 | 73.9 |
| Deposit and loan fees | | | | | | | | 10.8 |
| Gain on sale of investments, net | | | | | | | 0.5 | 0.0 |
| Other non-interest income | 62.2 | 79.3 | 79.8 | 45.0 | 39.2 | 40.1 | 33.5 | 21.0 |
| Total non-interest income | 62.2 | 79.3 | 79.8 | 45.0 | 39.2 | 40.1 | 34.0 | 31.8 |
| Non-interest expenses | 164.5 | 157.3 | 164.3 | 97.1 | 89.3 | 85.4 | 71.1 | 67.9 |
| Pre-tax income before non-recurring items | 133.9 | 163.7 | 84.4 | 64.3 | 60.2 | 52.1 | 44.5 | 41.2 |
| Non-recurring items | 7.6 | 7.3 | 5.1 | 3.7 | 3.3 | 3.6 | 2.9 | 3.4 |
| Pre-tax income | 126.3 | 156.4 | 79.3 | 60.6 | 56.9 | 48.5 | 41.6 | 37.8 |
| Income taxes | 24.1 | 30.4 | 16.2 | 11.3 | 10.6 | 16.2 | 12.8 | 11.4 |
| Tax rate | 19.1% | 19.4% | 20.4% | 18.6% | 18.7% | 33.4% | 30.7% | 30.2% |
| Net income | 102.2 | 126.1 | 63.1 | 49.4 | 46.2 | 32.3 | 28.8 | 26.4 |
| Net margin | 16.0% | 21.8% | 10.7% | 13.9% | 31.6% | 24.1% | 25.6% | 25.0% |
| |
| Basic EPS | $2.86 | $3.40 | $1.76 | $2.49 | $2.27 | $1.62 | $1.61 | $2.87 |
| Diluted EPS | $2.86 | $3.40 | $1.76 | $2.49 | $2.27 | $1.62 | $1.61 | $2.87 |
| |
| Shares outstanding (basic) | 35.7 | 37.1 | 35.9 | 19.8 | 20.3 | 19.9 | 17.9 | 9.2 |
| Shares outstanding (diluted) | 35.7 | 37.1 | 35.9 | 19.8 | 20.3 | 19.9 | 17.9 | 9.2 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |