| 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 | 495.8 | 415.8 | 426.0 | 448.0 | 428.2 | 324.2 | 291.5 | 286.2 |
| Interest income on investments | 147.9 | 119.3 | 91.1 | 80.6 | 68.2 | 49.7 | 46.3 | 42.6 |
| | 646.5 | 536.1 | 517.8 | 530.0 | 497.1 | 374.7 | 338.0 | 328.9 |
| Interest expense: |
| Interest on deposits | 16.5 | 6.2 | 9.4 | 22.1 | 12.1 | 4.8 | 3.1 | 3.0 |
| Interest on borrowings | 6.3 | 0.4 | 6.5 | 12.5 | 4.3 | 1.7 | 1.2 | 1.0 |
| | 23.6 | 8.5 | 17.7 | 36.5 | 18.2 | 6.8 | 4.4 | 4.0 |
| Net interest income | 622.8 | 527.5 | 500.1 | 493.4 | 478.8 | 368.0 | 333.6 | 324.9 |
| Provision for loan losses | 2.0 | 4.8 | 77.7 | 3.5 | 14.8 | 8.6 | 10.8 | 8.6 |
| Net interest income after provision for loan losses | 620.9 | 522.7 | 422.4 | 489.9 | 464.1 | 359.4 | 322.8 | 316.3 |
| Deposit and loan fees | | | | | | | | 28.5 |
| Gain on sale of investments, net | 0.0 | 0.3 | 16.7 | 2.1 | -0.1 | 0.0 | 1.2 | 1.6 |
| Other non-interest income | 99.2 | 93.8 | 87.8 | 95.0 | 88.3 | 109.7 | 86.9 | 61.4 |
| Total non-interest income | 99.1 | 94.1 | 104.5 | 97.2 | 88.3 | 109.6 | 88.1 | 91.5 |
| Non-interest expenses | 402.4 | 360.3 | 334.5 | 345.5 | 340.5 | 291.0 | 261.1 | 266.1 |
| Pre-tax income | 317.6 | 256.5 | 192.4 | 241.6 | 211.8 | 178.0 | 149.8 | 141.6 |
| Income taxes | 67.5 | 53.7 | 38.1 | 47.2 | 39.0 | 65.2 | 44.9 | 42.8 |
| Tax rate | 21.2% | 20.9% | 19.8% | 19.5% | 18.4% | 36.6% | 30.0% | 30.2% |
| Net income | 250.2 | 202.8 | 154.2 | 194.5 | 172.9 | 112.8 | 104.9 | 98.8 |
| Net margin | 34.7% | 32.9% | 29.3% | 33.1% | 31.3% | 24.1% | 25.5% | 24.2% |
| |
| Basic EPS | $3.21 | $2.79 | $2.18 | $2.70 | $2.39 | $1.88 | $1.83 | $1.73 |
| Diluted EPS | $3.20 | $2.78 | $2.18 | $2.70 | $2.39 | $1.88 | $1.83 | $1.73 |
| |
| Shares outstanding (basic) | 78.0 | 72.7 | 70.8 | 72.0 | 72.4 | 59.9 | 57.2 | 57.0 |
| Shares outstanding (diluted) | 78.2 | 72.9 | 70.9 | 72.0 | 72.4 | 59.9 | 57.2 | 57.0 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |