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SHARE-BASED COMPENSATION | 9 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
SHARE-BASED COMPENSATION | 11. SHARE-BASED COMPENSATION Restricted Stock Units The table below presents the activity of restricted stock units for the nine months ended September 30, 2021:
| Shares |  | Weighted Average Grant Date Fair Value
Non-vested restricted stock units, beginning of period | 532,374 |  |  | $ | 22.49 |
Changes during the period: |  |  |
Granted | 218,251 |  |  | 21.82 |
Vested | (187,611) |  |  | 23.24 |
Forfeited | (21,543) |  |  | 18.56 |
Non-vested restricted stock units, end of period | 541,471 |  |  | 22.12 |

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- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 + Details
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