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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHAREThe components of the calculation of earnings per share were as follows:
| 2021 |  | 2020 |  | 2019
| (Dollars and shares in thousands)
Net income | $ | 359,081 |  |  | $ | 308,722 |  |  | $ | 193,814 |
Weighted average number of shares used in: |  |  |  |  |
Basic earnings per share | 110,396 |  |  | 110,768 |  |  | 110,939 |
Dilutive common stock equivalents: |  |  |  |  |
Restricted stock units | 770 |  |  | 625 |  |  | 569 |
Diluted earnings per share | 111,166 |  |  | 111,393 |  |  | 111,508 |

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