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STOCK-BASED COMPENSATION PLANS - Additional information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Proceeds from Stock Options Exercised | $ 0.8 | $ 0.3 |
Unrecognized compensation expense related to stock options | $ 3.5 |  |
Weighted-average period of unrecognized compensation expense related to stock options | 2 years 10 months 24 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $ 4.4 | 1.1 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $ 0.1 | $ 0.2 |
Restricted Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 102,000 | 76,000 | 15,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 55,000 | 80,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 8.10 | $ 3.56 |
Stock Incentive Plan 2017 [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Stock options remain reserved for issuance | 3,700,000 |  |
Stock Incentive Plan 2017 [Member] | Employee Stock Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |  |
Stock Incentive Plan 2017 [Member] | Restricted Stock [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number | 1,200,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 700,000 |  |
Stock Incentive Plan 2017 [Member] | Restricted Stock [Member] | Share-based Payment Arrangement, Employee [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Stock Incentive Plan 2017 [Member] | Restricted Stock [Member] | Share-based Payment Arrangement, Nonemployee [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |  |
2005 Stock Option Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 3,000,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 700,000 |  |

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