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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Performance Award Details | The following table presents details of the performance awards described above.
Award Year | Service Conditions Lapse date | Performance Period | Award Conditions |  | Shares outstanding at 12/31/2021 (shares) | Grant Date Fair Value (in millions)
2021 | 02/28/24 | 01/01/2021- 12/31/2023 | Non-GAAP Financial Measure |  | 278,328 |  | $ | 6.5 |
Relative Total Shareholder Return |  | 278,328 |  | $ | 6.7 |
Relative Total Shareholder Return |  | 124,200 |  | $ | 3.2 |
02/28/23 | 01/01/2021- 12/31/2022 | Relative Total Shareholder Return |  | 252,082 |  | $ | 4.8 |
2020 | 02/28/23 | 01/01/2020- 12/31/2022 | Non-GAAP Financial Measure |  | 349,686 |  | $ | 11.7 |
Operational Measures |  | 80,696 |  | $ | 2.6 |
2019 | 02/28/22 | 01/01/2019- 12/31/2021 | Non-GAAP Financial Measure |  | 353,302 |  | $ | 11.7 |
Operational Measures |  | 81,528 |  | $ | 2.5 |
Restricted Stock Units (RSUs) |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule Of Transactions Of Share Based Compensation Other Than Stock Options |
(shares) | Restricted Stock Units |  | Weighted Average Award Date Fair Value Per Unit ($)
Non-vested at December 31, 2020 | 478,227 |  |  | 24.51 |
Granted | 285,755 |  |  | 19.83 |
Forfeited | (36,697) |  |  | 23.72 |
Vested | (155,131) |  |  | 22.66 |
Non-vested at December 31, 2021 | 572,154 |  |  | 22.72 |
Performance Shares |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule Of Transactions Of Share Based Compensation Other Than Stock Options |
(shares) | Performance Awards |  | Weighted Average Grant Date Fair Value Per Unit ($)
Non-vested at December 31, 2020 | 1,384,336 |  |  | 25.09 |
Granted | 973,885 |  |  | 21.76 |
Forfeited | (133,695) |  |  | 25.25 |
Vested | (426,375) |  |  | 22.09 |
Non-vested at December 31, 2021 | 1,798,151 |  |  | 23.78 |

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- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + 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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