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Stock Plans (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation Expense | Stock-based compensation expense was as follows:
(In thousands) | 2022 |  | 2021 |  | 2020
Restricted stock units | $ | 6,488 |  |  | $ | 5,797 |  |  | $ | 6,258 |
Stock options | 49 |  |  | 81 |  |  | 113 |
Performance stock units | 13,113 |  |  | 13,030 |  |  | 549 |
Total stock-compensation expense before income taxes | 19,650 |  |  | 18,908 |  |  | 6,920 |
Income tax benefit | 4,814 |  |  | 4,633 |  |  | 1,668 |
Total stock-compensation expense, net of income tax benefit | $ | 14,836 |  |  | $ | 14,275 |  |  | $ | 5,252 |
Summary of Option Activity | A summary of option activity follows:
| Shares |  | Weighted Average Exercise Price |  | Exercisable at Year-end
Outstanding January 1, 2020 | 559,656 |  |  | $ | 45.78 |  |  |
Exercised | (274,704) |  |  | 45.31 |  |  |
Forfeited | (954) |  |  | 42.00 |  |  |
Outstanding December 31, 2020 | 283,998 |  |  | 46.23 |  |  | 281,593 |
Exercised | (122,087) |  |  | 47.25 |  |  |
Forfeited | (210) |  |  | 43.75 |  |  |
Outstanding December 31, 2021 | 161,701 |  |  | 45.47 |  |  | 161,347 |
Exercised | (103,545) |  |  | 44.91 |  |  |
Outstanding December 31, 2022 | 58,156 |  |  | $ | 46.48 |  |  | 58,156 |
Characteristics of Outstanding and Exercisable Stock Options | For various exercise price ranges, characteristics of outstanding and exercisable stock options at December 31, 2022 were as follows:
| Stock Options Outstanding
Range of Exercise Prices | Shares |  | Weighted-Average
Exercise Price |  | Remaining Life
$33.01 – $45.00 | 33,148 |  |  | $ | 44.50 |  |  | 2.41
$45.01 – $57.93 | 25,008 |  |  | 49.10 |  |  | 2.21
$33.01 – $57.93 | 58,156 |  |  | $ | 46.48 |  |  | 2.32
| Stock Options Exercisable
Range of Exercise Prices | Shares |  | Weighted-Average
Exercise Price |  | Remaining Life
$33.01 – $45.00 | 33,148 |  |  | $ | 44.50 |  |  | 2.41
$45.01 – $57.93 | 25,008 |  |  | 49.10 |  |  | 2.21
$33.01 – $57.93 | 58,156 |  |  | $ | 46.48 |  |  | 2.32
Summary of Restricted Stock Unit Activity | A summary of restricted stock unit activity follows:
| Shares |  | Weighted Average Grant Date Fair Value
Unvested January 1, 2020 | 172,701 |  |  | $ | 90.38 |
Granted | 51,468 |  |  | 124.61 |
Vested | (70,399) |  |  | 81.58 |
Forfeited | (7,579) |  |  | 106.54 |
Unvested at December 31, 2020 | 146,191 |  |  | 105.83 |
Granted | 43,146 |  |  | 167.13 |
Vested | (65,225) |  |  | 95.43 |
Forfeited | (5,769) |  |  | 132.54 |
Unvested at December 31, 2021 | 118,343 |  |  | 132.62 |
Granted | 87,697 |  |  | 130.28 |
Vested | (51,369) |  |  | 113.96 |
Forfeited | (8,785) |  |  | 139.66 |
Unvested at December 31, 2022 | 145,886 |  |  | $ | 137.36 |
Summary of Performance Stock Unit Activity | A summary of performance stock unit activity follows:
| Shares |  | Weighted Average Grant Date Fair Value
Unvested at January 1, 2020 | 238,035 |  |  | $ | 85.39 |
Granted | 67,479 |  |  | 127.48 |
Vested | (132,036) |  |  | 73.00 |
Performance adjustments | 33,499 |  |  | 72.36 |
Forfeited | (6,765) |  |  | 111.60 |
Unvested at December 31, 2020 | 200,212 |  |  | 104.69 |
Granted | 52,309 |  |  | 175.59 |
Vested | (64,543) |  |  | 85.41 |
Performance adjustments | 5,357 |  |  | 88.45 |
Unvested at December 31, 2021 | 193,335 |  |  | 129.86 |
Granted | 81,504 |  |  | 142.38 |
Vested | (55,447) |  |  | 101.38 |
Performance adjustments | (22,147) |  |  | 99.84 |
Forfeited | (18,485) |  |  | 147.66 |
Unvested at December 31, 2022 | 178,760 |  |  | $ | 146.28 |

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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