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Earnings Per Share (Schedule of Diluted Shares) (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Schedule of Diluted shares |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ 31,741 |  |  | $ 7,607 |  |  | $ 47,546 | $ (44,545)
Income from continuing operations attributable to unvested shares | (404) |  |  | (121) |  |  | (755) |
Numerator for basic | 31,337 |  |  | 7,486 |  |  | 46,791 | (44,545)
Numerator for dilutive | 31,337 |  |  | 7,486 |  |  | 46,791 | (44,545)
Income (loss) from discontinued operations, net of tax | (20) |  |  | 11 |  |  | (72) | (41)
(Income) loss from discontinued operations attributable to unvested shares |  |  |  |  |  |  | 1 |
Numerator for basic | (20) |  |  | 11 |  |  | (71) | (41)
Numerator for dilutive | (20) |  |  | 11 |  |  | (71) | (41)
Net income (loss) | 31,721 | $ 5,884 | $ 9,869 | 7,618 | $ 596 | $ (52,800) | 47,474 | (44,586)
Net income attributable to unvested shares | (404) |  |  | (121) |  |  | (754) |
Numerator for basic | 31,317 |  |  | 7,497 |  |  | 46,720 | (44,586)
Numerator for dilutive | $ 31,317 |  |  | $ 7,497 |  |  | $ 46,720 | $ (44,586)
Basic weighted average shares outstanding | 58,586 |  |  | 57,456 |  |  | 58,102 | 57,628
Effect of dilutive securities | 330 |  |  | 285 |  |  | 552 |
Diluted weighted average shares outstanding | 58,916 |  |  | 57,741 |  |  | 58,654 | 57,628
Stock options and unvested restricted stock grants excluded from dilutive calculation because they would be anti-dilutive | 138 |  |  | 1,801 |  |  | 282 | 3,465

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