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STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Shares available for grant | 1,500,256 |  |
Closing stock price of common stock | $ 30.90 |  |
Employee Stock Option [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Option term | 10 years |  |
Unrecognized compensation cost | $ 0 |  |
Total compensation cost | $ 0 | $ 0 | $ 6,000
Employee Stock Option [Member] | Maximum [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Option term | 10 years |  |
Stock option vesting term | 5 years |  |
Restricted stock [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 13,000,000 |  |
Shares granted | 223,396 |  |
Weighted average period over which unrecognized compensation is expected to be recognized (in years) | 1 month 2 days |  |
Total compensation cost | $ 5,900,000 | $ 4,600,000 | $ 3,500,000
Restricted stock [Member] | Tranche One [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Stock option vesting term | 3 years |  |
Restricted stock [Member] | Tranche Two [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Stock option vesting term | 5 years |  |
Performance Shares [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Shares granted | 47,770 |  |
Restricted Stock Units [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Unrecognized compensation cost | $ 9,700,000 |  |
Weighted average period over which unrecognized compensation is expected to be recognized (in years) | 1 year 1 month 17 days |  |

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