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Earnings Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings Per Share | E ARNINGS P ER S HARE The components of the calculation of earnings per share were as follows:
| 2016 |  | 2015 |  | 2014
| (Dollars and shares in thousands)
Net income | $ | 153,351 |  |  | $ | 172,413 |  |  | $ | 182,391 |
Weighted average number of shares used in: |  |  |  |  |
Basic earnings per share | 59,866 |  |  | 61,021 |  |  | 63,426 |
Dilutive common stock equivalents: |  |  |  |  |
Restricted stock units | 383 |  |  | 285 |  |  | 319 |
Diluted earnings per share | 60,249 |  |  | 61,306 |  |  | 63,745 |

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