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Share Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] | A summary of changes in the common shares subject to nonvested PBRSUs and TBRSUs for the three months ended March 31, 2022 follows:
| Common shares subject to PBRSUs and TBRSUs
Nonvested at January 1, 2022 | 211,819 |
Granted | 52,335 |
Vested | (48,415) |
Forfeited | (373) |
Adjustment for performance conditions of PBRSUs (1) | (634) |
Nonvested at March 31, 2022 (2) | 214,732 |
Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block] | The following table details expected additional share-based compensation expense related to PBRSUs and TBRSUs outstanding at March 31, 2022:
(In thousands) |  |
Nine months ending December 31, 2022 |  | $ | 4,198 |
2023 |  | 4,449 |
2024 |  | 2,902 |
2025 |  | 1,210 |
2026 |  | 194 |
Total |  | $ | 12,953 |
Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest | A summary of awards vested during the three months ended March 31, 2022 and 2021 follows:
|  | Three Months Ended March 31, |
|  | 2022 |  | 2021 |
PBRSU and TBRSU vested |  | 48,415 |  | 35,872 |  |
Common shares withheld to satisfy employee income tax withholding obligations |  | 18,658 |  | 14,108 |  |
Net common shares issued |  | 29,757 |  |  | 21,764 |  |

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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding performance-based awards that are fully vested and expected to vest. Includes, but is not limited to, unvested awards for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + 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 (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + 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 (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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