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SHAREHOLDERS' EQUITY (Details) - USD ($) | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Jul. 24, 2020 | Feb. 28, 2019 | Feb. 28, 2018 | May 31, 2017
Weighted average shares outstanding: |  |  |  |  |  |
Weighted average basic common shares (in shares) | 12,901,000 | 13,070,000 |  |  |  |
Effect of stock options (in shares) | 0 | 658,000 |  |  |  |
Effect of dilutive share awards (in shares) | 0 | 118,000 |  |  |  |
Effect of Convertible Senior Notes (in shares) | 0 | 273,000 |  |  |  |
Weighted average diluted common shares (in shares) | 12,901,000 | 14,119,000 |  |  |  |
Additional disclosure |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 300,000 |  |  |  |  |
Common stock repurchases |  |  |  |  |  |
Value of common stock authorized to be repurchased |  |  |  | $ 150,000,000 | $ 100,000,000 |
Purchased shares of common stock under stock repurchase program (in shares) | 379,895 |  |  |  |  |
Repurchases of common stock | $ 43,009,000 | $ 0 |  |  |  |
Remaining authorized repurchase amount | $ 96,700,000 |  |  |  |  |
2025 Convertible Notes | Convertible Debt |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Stated interest rate | 0.50% |  | 0.50% |  |  |
2022 Convertible Notes |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 0.625%
2022 Convertible Notes | Convertible Debt |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Stated interest rate | 0.625% |  |  |  |  |
Option |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 900,000 | 300,000 |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 200,000 |  |  |  |  |
Convertible Debt |  |  |  |  |  |
Additional disclosure |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 2,100,000 |  |  |  |  |

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