Share-based Compensation and Equity (Tables)
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12 Months Ended |
Dec. 31, 2019 |
Share-based Payment Arrangement [Abstract] |
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Summary of Share-Based Compensation Expense |
Share-based compensation expense was as follows: | | | | | | | | | | | | | For the years ended December 31, | 2019 | | 2018 | | 2017 | Continuing operations | | | | | | Stock options, net of estimated forfeitures | $ | 3,702 |
| | $ | (3,026 | ) | | $ | 48,601 |
| Restricted stock awards | 8,959 |
| | 12,764 |
| | 13,243 |
| Total continuing operations | $ | 12,661 |
| | $ | 9,738 |
| | $ | 61,844 |
| | | | | | | Discontinued operations | | | | | | Share-based compensation expense for discontinued operations | 333 |
| | 1,053 |
| | 2,944 |
| Total continuing and discontinued operations | $ | 12,994 |
| | $ | 10,791 |
| | $ | 64,788 |
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Summary of Stock Options Activity |
The following tables summarize the stock option activity and the assumptions used to record the related share-based compensation expense for the years ended December 31, 2019, 2018 and 2017: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2019 | | 2018 | | 2017 | | | Options | Weighted Average Exercise Price | Aggregate Intrinsic Value | | Options | Weighted Average Exercise Price | Aggregate Intrinsic Value | | Options | Weighted Average Exercise Price | Aggregate Intrinsic Value | Outstanding at January 1 | | 9,020 |
| $ | 18.79 |
| $ | 744 |
| | 9,903 |
| $ | 19.30 |
| $ | — |
| | 10,928 |
| $ | 21.81 |
| $ | 4,350 |
| Granted | | 698 |
| 14.99 |
| | | 717 |
| 14.27 |
| | | 4,283 |
| 19.01 |
| | Exercised | | (1,569 | ) | 16.95 |
| 794 |
| | — |
| — |
| — |
| | — |
| — |
| — |
| Forfeited or expired | | (2,761 | ) | 20.06 |
| | | (1,600 | ) | 19.92 |
| | | (5,308 | ) | 18.34 |
| | Outstanding at December 31 | | 5,388 |
| 18.18 |
| 3,396 |
| | 9,020 |
| 18.79 |
| 744 |
| | 9,903 |
| 19.30 |
| — |
| Exercisable at December 31 | | 4,846 |
| 18.50 |
| 2,136 |
| | 7,878 |
| 19.11 |
| 265 |
| | 8,606 |
| 19.38 |
| — |
| Vested and expected to vest | | 5,274 |
| 18.20 |
| 3,344 |
| | 8,990 |
| 18.80 |
| 722 |
| | 9,847 |
| 19.31 |
| — |
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Summary of Stock Option Plans, By Exercise Price Range |
| | | | | | | | | | | | | | Options Outstanding | | Options Exercisable | | Assumption Range* | Exercise Prices | Number of Shares | Weighted Average Remaining Contractual Terms (Years) | | Number of Shares | Weighted Average Remaining Contractual Terms (Years) | | Risk-Free Interest Rate | Expected Terms in Years | Expected Volatility | Year Ended December 31, 2019 | | | | | | | | | | $13.97 - $15.55 | 944 |
| 7.89 | | 524 |
| 7.06 | | 1.81% - 3.05% | 3.25 - 5.91 | 38.29% - 64.18% | $17.00 - $19.56 | 3,597 |
| 3.12 | | 3,475 |
| 2.95 | | 1.38% - 2.94% | 2.60 - 10.00 | 35.20% - 58.84% | $21.00 - $21.52 | 330 |
| 1.09 | | 330 |
| 1.09 | | 0.68% - 2.61% | 3.79 - 6.55 | 38.16% - 57.79% | $22.32 - $31.92 | 517 |
| 1.44 | | 517 |
| 1.44 | | 0.60% - 3.03% | 3.18 - 6.52 | 36.93% - 53.80% | Year Ended December 31, 2018 | | | | | | | | | | $13.97 - $15.55 | 674 |
| 8.31 | | 250 |
| 7.98 | | 1.81% - 3.05% | 3.25 - 5.91 | 49.98% - 64.18% | $17.00 - $19.56 | 5,730 |
| 3.69 | | 5,013 |
| 3.50 | | 0.49% - 2.94% | 2.60 - 10.00 | 36.04% - 69.74% | $21.00 - $21.52 | 1,917 |
| 1.39 | | 1,916 |
| 1.39 | | 0.68% - 2.60% | 2.92 - 6.52 | 38.16% - 69.74% | $22.32 - $31.92 | 699 |
| 2.53 | | 699 |
| 2.53 | | 0.60% - 2.93% | 4.00 - 6.52 | 36.93% - 53.80% | Year Ended December 31, 2017 | | | | | | | | | | $14.58 - $19.56 | 6,500 |
| 4.58 | | 5,549 |
| 4.22 | | 0.33% - 3.31% | 2.03 -10.00 | 32.18% - 69.74% | $21.00 - $21.28 | 693 |
| 2.18 | | 347 |
| 0.66 | | 0.43% - 3.60% | 2.11 - 6.67 | 33.24% - 57.79% | $21.32 - $21.52 | 1,776 |
| 2.14 | | 1,776 |
| 2.14 | | 0.68% - 2.61% | 3.38 - 6.55 | 38.16% - 69.74% | $21.68 - $22.32 | 221 |
| 1.94 | | 221 |
| 1.94 | | 0.57% - 3.03% | 2.18 - 6.52 | 36.78% - 52.47% | $22.88 - $31.92 | 713 |
| 3.76 | | 713 |
| 3.76 | | 0.73% - 2.86% | 4.00 - 6.52 | 39.03% - 53.80% |
* The expected dividend yield is zero for all options in all years.
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Summary of Non-Vested Restricted Stock And Restricted Stock Units Activity |
The following table summarizes the non-vested restricted stock and restricted stock units activity for the years ended December 31, 2019, 2018 and 2017: | | | | | | | | | | | | | | | | | | | | | | | | | 2019 | | 2018 | | 2017 | | | Shares | | Weighted Average Grant Date Fair Value | | Shares | | Weighted Average Grant Date Fair Value | | Shares | | Weighted Average Grant Date Fair Value | Non-vested at January 1 | | 1,895 |
| | $ | 15.31 |
| | 1,650 |
| | $ | 19.74 |
| | 1,038 |
| | $ | 25.97 |
| Granted | | 1,003 |
| | 15.10 |
| | 1,306 |
| | 14.11 |
| | 1,337 |
| | 16.65 |
| Vested | | (765 | ) | | 16.18 |
| | (853 | ) | | 21.66 |
| | (328 | ) | | 22.35 |
| Forfeited | | (882 | ) | | 15.20 |
| | (208 | ) | | 17.41 |
| | (397 | ) | | 23.33 |
| Non-vested at December 31 | | 1,251 |
| | 14.69 |
| | 1,895 |
| | 15.31 |
| | 1,650 |
| | 19.74 |
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