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Incentive Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | Additional disclosures for time-based RSAs and time-based RSUs:
| Year Ended December 31,
| 2021 | 2020 | 2019
Weighted average grant date fair value of awards granted | $ | 88.84 |  | $ | 66.32 |  | $ | 124.04 |
Fair value of awards vested during the year (in millions) | 28.7 |  | 18.1 |  | 39.7 |
Share-based Payment Arrangement, Cost by Plan | Stock-based compensation expense and other disclosures for stock-based awards follows:
| Year Ended December 31,
(in thousands) | 2021 | 2020 | 2019
Stock-based compensation expense recognized | $ | 40,623 |  | $ | 60,145 |  | $ | 23,993 |
Income tax benefit realized from stock-based compensation expense | 10,677 |  | 16,217 |  | 4,871 |
Restricted Stock [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of time-based restricted stock awards and time-based restricted stock units activity | Following is a summary of time-based RSAs and time-based RSUs award activity for 2021:
| Total Awards (in thousands) | Weighted Average Grant Date Fair Value
Non-vested - December 31, 2020 | 636 |  | $ | 78.04 |
Granted | 430 |  | 88.84 |
Vested | (332) |  | 80.06 |
Canceled | (21) |  | 89.50 |
Non-vested - December 31, 2021 | 713 |  | $ | 82.61 |
Performance Shares [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary of LTIP awards activity | The following is a summary of LTIP award activity, at 100% of targeted amount, for 2021:
| Number of Performance Units (in thousands) |  | Weighted Average Grant Date Fair Value
Unvested at December 31, 2020 | 270 |  |  | $ | 89.40 |
Granted | 83 |  |  | 96.05 |
Vested | (98) |  |  | 81.51 |
Canceled | (17) |  |  | 106.44 |
Unvested at December 31, 2021 | 238 |  |  | $ | 9,378.00 |

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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=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&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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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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