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EMPLOYEE STOCK COMPENSATION - Nonvested Stock Option Activity (Detail) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2017
Number of Shares |  |
Non-vested outstanding at beginning of period (in shares) | 513,338 | 518,936
Vested (in shares) | (151,608) | (157,206)
Forfeited (in shares) | (96,000) | (96,000)
Non-vested outstanding at end of period (in shares) | 265,730 | 265,730
Weighted- Average Exercise Price per Share |  |
Non-vested outstanding at beginning of period (in dollars per share) | $ 15.07 | $ 15.04
Vested (in dollars per share) | 14.26 | 14.22
Forfeited (in dollars per share) | 17.50 | 17.50
Non-vested outstanding at end of period (in dollars per share) | $ 14.65 | $ 14.65

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