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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2022
Compensation Related Costs [Abstract] |
Schedule of Nonvested Share Activity [Table Text Block] | The following summarizes the activity of our PSUs and RSUs awarded under our incentive plan for the six months ended June 30, 2022:
| PSUs |  | RSUs
| Number of shares |  | Weighted Average Grant-Date Fair Value |  | Number of shares |  | Weighted Average Grant-Date Fair Value
Outstanding, December 31, 2021 | 246,210 |  |  | $ | 39.50 |  |  | 161,300 |  |  | $ | 45.08 |
Granted | 66,180 |  |  | 79.81 |  |  | 86,164 |  |  | 80.00 |
Performance condition adjustment (a) | 64,399 |  |  | 52.45 |  |  | — |  |  | — |
Vested | (58,935) |  |  | 34.41 |  |  | (91,594) |  |  | 43.58 |
Forfeited | — |  |  | — |  |  | (1,236) |  |  | 79.83 |
Outstanding, June 30, 2022 | 317,854 |  |  | $ | 51.46 |  |  | 154,634 |  |  | $ | 65.15 |
_______________________________ (a) Represents additional PSUs granted during the six months ended June 30, 2022, related to the 2021 performance condition adjustment described above.
Stock-Based Compensation Expense Recognized [Table Text Block] | Total stock-based compensation recognized from PSUs and RSUs, net of forfeitures, was as follows:
| Three Months Ended June 30 |  | Six Months Ended June 30
| 2022 |  | 2021 |  | 2022 |  | 2021
| (thousands)
PSUs | $ | 1,695 |  |  | $ | 745 |  |  | $ | 3,001 |  |  | $ | 1,834 |
RSUs | 1,317 |  |  | 666 |  |  | 2,402 |  |  | 1,669 |
Total | $ | 3,012 |  |  | $ | 1,411 |  |  | $ | 5,403 |  |  | $ | 3,503 |

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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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