v3.19.2

SHARE-BASED COMPENSATION - Other Award Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Significant ranges of outstanding and exercisable options [Line Items] |  |  |  |  |
Number of options outstanding | 545,082 |  | 545,082 |  | 755,210
Weighted average remaining contractual life options outstanding |  |  | 1 year 4 months 24 days |  |
Weighted average exercise price options outstanding | $ 12.03 |  | $ 12.03 |  | $ 9.42
Number of options exercisable | 545,082 |  | 545,082 |  |
Weighted average exercise price options exercisable | $ 12.03 |  | $ 12.03 |  |
Recognized Non-Cash Compensation Expense [Line Items] |  |  |  |  |
Total Non cash compensation expense recognized | $ 2,634 | $ 2,951 | $ 5,473 | $ 6,055 |
Exercise prices from 6.43 to 9.66 |  |  |  |  |
Significant ranges of outstanding and exercisable options [Line Items] |  |  |  |  |
Number of options outstanding | 204,375 |  | 204,375 |  |
Weighted average remaining contractual life options outstanding |  |  | 1 year 4 months 24 days |  |
Weighted average exercise price options outstanding | $ 9.62 |  | $ 9.62 |  |
Number of options exercisable | 204,375 |  | 204,375 |  |
Weighted average exercise price options exercisable | $ 9.62 |  | $ 9.62 |  |
Exercise prices from 13.11 to 13.98 |  |  |  |  |
Significant ranges of outstanding and exercisable options [Line Items] |  |  |  |  |
Number of options outstanding | 340,707 |  | 340,707 |  |
Weighted average remaining contractual life options outstanding |  |  | 1 year 4 months 24 days |  |
Weighted average exercise price options outstanding | $ 13.48 |  | $ 13.48 |  |
Number of options exercisable | 340,707 |  | 340,707 |  |
Weighted average exercise price options exercisable | $ 13.48 |  | $ 13.48 |  |
Station operating expenses [Member] |  |  |  |  |
Recognized Non-Cash Compensation Expense [Line Items] |  |  |  |  |
Total Non cash compensation expense recognized | $ 1,243 | 1,680 | $ 2,668 | 3,643 |
Corporate general and administrative expenses [Member] |  |  |  |  |
Recognized Non-Cash Compensation Expense [Line Items] |  |  |  |  |
Total Non cash compensation expense recognized | 2,130 | 2,050 | 4,298 | 4,010 |
Stock-based compensation expense included in operating expenses [Member] |  |  |  |  |
Recognized Non-Cash Compensation Expense [Line Items] |  |  |  |  |
Total Non cash compensation expense recognized | 3,373 | 3,730 | 6,966 | 7,653 |
Income tax benefit (net of a fully reserved valuation allowance for prior year) [Member] |  |  |  |  |
Recognized Non-Cash Compensation Expense [Line Items] |  |  |  |  |
Total Non cash compensation expense recognized | $ 739 | $ 779 | $ 1,493 | $ 1,598 |

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