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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Share-Based Compensation Expense | The following table summarizes share-based compensation expense:
|  | Year Ended December 31, |
(in thousands) |  | 2019 |  |  | 2018 |  |  | 2017 |
Performance unit incentive plan (“PUP”) |  | $ | 3,990 |  |  | $ | 2,260 |  |  | $ | 8,088 |
Restricted stock |  |  | 2,684 |  |  |  | 2,453 |  |  |  | 2,594 |
Restricted stock units |  |  | 516 |  |  |  | 157 |  |  |  | 287 |
Share-based compensation before income tax benefit |  |  | 7,190 |  |  |  | 4,870 |  |  |  | 10,969 |
Income tax benefit |  |  | (2,241 | ) |  |  | (1,227 | ) |  |  | (4,079 | )
Share-based compensation, net of income tax benefit |  | $ | 4,949 |  |  | $ | 3,643 |  |  | $ | 6,890 |
Summary of Activity of the Outstanding Share-Based Compensation Awards | The following table summarizes the activity of the outstanding share-based compensation awards:
|  | PUP Awards |  |  | Restricted Stock |  |  | Restricted Stock Units |
|  | Shares |  |  | Weighted-Average Grant Date Fair Value |  |  | Shares |  |  | Weighted-Average Grant Date Fair Value |  |  | Shares |  |  | Weighted-Average Grant Date Fair Value |
Balance at December 31, 2018 |  |  | 239,809 |  |  | $ | 40.65 |  |  |  | 176,769 |  |  | $ | 40.87 |  |  |  | 12,090 |  |  | $ | 39.04 |
Granted |  |  | 73,619 |  |  | $ | 58.29 |  |  |  | 56,390 |  |  | $ | 57.99 |  |  |  | 8,898 |  |  | $ | 61.16 |
Vested |  |  | (95,309 | ) |  | $ | 26.98 |  |  |  | (85,436 | ) |  | $ | 32.27 |  |  |  | (9,250 | ) |  | $ | 43.65 |
Forfeited |  |  | (3,215 | ) |  | $ | 55.72 |  |  |  | (11,600 | ) |  | $ | 49.05 |  |  |  | (115 | ) |  | $ | 52.15 |
Balance at December 31, 2019 |  |  | 214,904 |  |  | $ | 52.53 |  |  |  | 136,123 |  |  | $ | 52.66 |  |  |  | 11,623 |  |  | $ | 52.17 |
Summary of Stock Option Activity | The following table summarizes stock option activity:
|  | Shares |  |  | Weighted-Average Exercise Price |
Options outstanding and exercisable at December 31, 2018 |  |  | 58,689 |  |  | $ | 16.62 |
Exercised |  |  | (17,546 | ) |  | $ | 16.62 |
Options outstanding and exercisable at December 31, 2019 |  |  | 41,143 |  |  | $ | 16.62 |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + 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 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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