| In millions, except per share items | Sep-30-17 | Jun-30-17 | Mar-31-17 | Dec-31-16 | Sep-30-16 | Jun-30-16 | Mar-31-16 | Dec-31-15 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| INTEREST REVENUE: | | | | | | | | |
| Loans and leases | 119.6 | 115.3 | 111.5 | 112.2 | 111.6 | 109.1 | 107.8 | 107.2 |
| Deposits with other banks | 0.2 | 0.3 | 0.5 | 0.2 | 0.4 | 0.2 | 0.3 | 0.0 |
| |
| Available-for-sale securities: | | | | | | | | |
| Taxable | 7.4 | 7.5 | 7.4 | | 6.2 | 6.0 | 5.9 | |
| Tax-exempt | 2.5 | 2.6 | 2.6 | 2.8 | 2.9 | 2.9 | 3.0 | 3.1 |
| Loans held for sale | 1.2 | 1.2 | 1.0 | 1.2 | 1.2 | 1.2 | 1.0 | 1.2 |
| Total interest revenue | 130.9 | 126.9 | 122.9 | 123.4 | 122.3 | 119.4 | 118.0 | 118.1 |
| |
| INTEREST EXPENSE: | | | | | | | | |
| Deposits: | | | | | | | | |
| Interest bearing demand | 3.5 | 3.2 | 2.8 | 2.5 | 2.4 | 2.2 | 2.2 | 2.2 |
| Savings | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | 0.4 |
| Other time | 3.8 | 3.7 | 3.6 | 3.7 | 3.7 | 3.4 | 3.4 | 3.4 |
| Federal funds purchased and securities sold under agreement to repurchase | 0.8 | 0.5 | 0.3 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 |
| Long-term debt | 1.8 | 1.5 | 1.1 | | 0.9 | 0.7 | 0.5 | |
| Junior subordinated debt | | | 0.0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Other | | | 0.0 | | 0.0 | 0.0 | | |
| Total interest expense | -10.4 | -9.4 | -8.3 | | -7.8 | -7.1 | -6.8 | |
| Net interest revenue | 120.6 | 117.5 | 114.6 | | 114.6 | 112.3 | 111.2 | |
| Provision for credit losses | 0.5 | 1.0 | 1.0 | 1.0 | | 2.0 | 1.0 | |
| Net interest revenue, after provision for credit losses | 120.1 | 116.5 | 113.6 | 114.4 | 114.6 | 110.3 | 110.2 | 111.2 |
| |
| NONINTEREST REVENUE: | | | | | | | | |
| Mortgage banking | 6.9 | 6.1 | 9.0 | 17.8 | 11.1 | 7.9 | 1.8 | 10.5 |
| Credit card, debit card and merchant fees | 9.3 | 9.6 | 8.9 | 9.3 | 9.3 | 9.5 | 9.0 | 9.4 |
| Deposit service charges | 10.4 | 9.7 | 9.7 | 10.0 | 11.3 | 11.0 | 11.0 | 11.8 |
| Security gains, net | 0.0 | 0.0 | 1.1 | | 0.0 | 0.1 | 0.0 | |
| Insurance commissions | 28.6 | 31.1 | 32.9 | 25.7 | 28.2 | 28.8 | 33.2 | 25.3 |
| Wealth management | 5.4 | 5.3 | 5.2 | | 5.3 | 5.3 | 5.1 | |
| Other | 5.3 | 6.3 | 4.1 | 4.8 | 4.5 | 5.9 | 4.6 | 4.8 |
| Total noninterest revenue | 66.0 | 68.1 | 70.9 | 73.0 | 69.7 | 68.5 | 64.7 | 67.4 |
| |
| NONINTEREST EXPENSE: | | | | | | | | |
| Salaries and employee benefits | 81.4 | 81.6 | 81.4 | 81.8 | 80.9 | 80.7 | 81.7 | 80.2 |
| Occupancy, net of rental income | 10.3 | 10.5 | 10.3 | 10.3 | 10.4 | 10.1 | 10.3 | 10.4 |
| Equipment | 3.4 | 3.4 | 3.6 | 3.6 | 3.4 | 3.3 | 3.8 | 3.6 |
| Deposit insurance assessments | 2.5 | 2.3 | 2.5 | 1.8 | 3.2 | 2.6 | 2.3 | 2.6 |
| Regulatory settlement | | | | | | | 10.3 | |
| Other | 29.3 | 29.8 | 29.4 | 34.0 | 30.4 | 30.9 | 33.2 | 51.5 |
| Total noninterest expense | 126.9 | 127.6 | 127.1 | 131.5 | 128.3 | 127.6 | 141.5 | 148.4 |
| Income before income taxes | 59.1 | 57.1 | 57.4 | 55.8 | 55.9 | 51.3 | 33.4 | 30.3 |
| Income tax expense | 19.6 | 19.2 | 19.3 | 18.2 | 18.1 | 16.6 | 10.8 | 9.1 |
| Tax rate | 33.1% | 33.6% | 33.6% | 32.5% | 32.4% | 32.3% | 32.4% | 30.1% |
| Net income | 39.5 | 37.9 | 38.1 | 37.7 | 37.8 | 34.7 | 22.5 | 21.2 |
| |
| Earnings per share: | | | | | | | | |
| Basic (in dollars per share) | $0.43 | $0.41 | $0.41 | $0.40 | $0.40 | $0.37 | $0.24 | $0.23 |
| Diluted (in dollars per share) | $0.43 | $0.41 | $0.41 | $0.41 | $0.40 | $0.37 | $0.24 | $0.23 |
| |
| Dividends declared per common share (in dollars per share) | $0.14 | $0.13 | $0.13 | $0.12 | $0.13 | $0.10 | $0.10 | $0.10 |