| 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 | 462.1 | 423.2 | 393.5 | 316.6 | 293.1 | 172.1 | 150.9 | 135.2 |
| Interest income on investments | 20.5 | 24.7 | 28.0 | 27.6 | 28.4 | 22.0 | 19.1 | 22.5 |
| Interest income on repurchase agreements | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| | 495.7 | 450.3 | 423.6 | 347.9 | 324.1 | 194.8 | 170.6 | 158.3 |
| Interest expense: |
| Interest on deposits | 43.9 | 15.0 | 41.7 | 61.7 | 39.1 | 13.3 | 8.2 | 5.9 |
| Interest on borrowings | | 2.6 | 6.6 | 16.6 | 21.4 | 12.4 | 11.6 | 13.1 |
| | 68.7 | 25.8 | 60.4 | 82.6 | 63.6 | 26.0 | 21.0 | 20.1 |
| Net interest income | 427.0 | 424.5 | 363.2 | 265.3 | 260.4 | 168.8 | 149.6 | 138.2 |
| Provision for loan losses | | -1.2 | 1.6 | | 9.0 | 3.0 | 5.5 | 5.4 |
| Net interest income after provision for loan losses | 427.0 | 425.8 | 361.6 | 265.3 | 251.4 | 165.8 | 144.0 | 132.8 |
| Deposit and loan fees | 9.8 | | | | | | | 7.6 |
| Credit and debit card fees | | | | | | | | 4.7 |
| Gain on sale of investments, net | | | | | | | | 0.0 |
| Other non-interest income | 77.2 | 102.1 | 102.7 | 71.3 | 61.0 | 51.2 | 51.0 | 37.6 |
| Total non-interest income | 87.0 | 102.1 | 102.7 | 71.3 | 61.0 | 51.2 | 51.0 | 49.9 |
| Non-interest expenses | 257.3 | 260.5 | 255.8 | 179.1 | 179.8 | 129.1 | 123.1 | 115.3 |
| Pre-tax income before non-recurring items | 238.9 | 311.7 | 149.6 | 154.2 | 144.5 | 92.2 | 72.0 | 63.5 |
| Non-recurring items | 16.5 | 0.0 | 25.2 | 1.3 | 11.8 | 4.3 | | -3.9 |
| Pre-tax income | 222.4 | 311.7 | 124.4 | 152.9 | 132.7 | 87.9 | 72.0 | 67.4 |
| Income taxes | 56.1 | 76.6 | 27.5 | 36.4 | 31.8 | 34.7 | 23.7 | 22.0 |
| Tax rate | 25.2% | 24.6% | 22.1% | 23.8% | 24.0% | 39.5% | 33.0% | 32.7% |
| Net income | 166.3 | 235.1 | 97.0 | 116.4 | 100.9 | 53.2 | 48.3 | 45.4 |
| Net margin | 31.8% | 44.5% | 20.9% | 34.6% | 32.3% | 24.5% | 24.7% | 24.8% |
| |
| Basic EPS | $3.69 | $5.00 | $2.19 | $3.25 | $2.82 | $2.20 | $2.00 | $1.84 |
| Diluted EPS | $3.68 | $5.00 | $2.19 | $3.25 | $2.82 | $2.20 | $2.00 | $1.84 |
| |
| Shares outstanding (basic) | 45.1 | 47.0 | 44.3 | 35.8 | 35.7 | 24.2 | 24.1 | 24.7 |
| Shares outstanding (diluted) | 45.2 | 47.0 | 44.3 | 35.8 | 35.7 | 24.2 | 24.1 | 24.7 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |