NET INCOME PER COMMON SHARE - Dislcosure of Anit-Dilutive Shares (Details) - $ / shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Restricted Stock Units Service Conditions [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Excluded shares as anti-dilutive under the treasury stock method | 3,555 | 1,586 | 1,939 | 1,415 |
| Options Activity [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Excluded shares as anti-dilutive under the treasury stock method | 545 | 563 | 549 | 565 |
| Price range of option: from | $ 6.43 | $ 9.66 | $ 6.43 | $ 9.66 |
| Price range of option: to | $ 13.98 | $ 13.98 | $ 13.98 | $ 13.98 |
| Restricted Stock Units Activity [Member] | Restricted Stock Units Service And Market Conditions But Market Not Met [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Excluded shares as anti-dilutive under the treasury stock method | 70 | 226 | 70 | 226 |