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Stock-based Compensation (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
May 18, 2021 | May 31, 2017 | Jan. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | May 20, 2014
Stock-based compensation expense (benefit) |  |  |  | $ 7,900 | $ 6,000 | $ 7,900 |
Income tax benefits related to the stock-based compensation plans |  |  |  | $ 2,000 | $ 1,400 | $ 1,800 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  |  | 0 |  |  |
Stock options outstanding |  |  |  | 0 | 0 |  |
Omnibus Plan 2014 [Member] |  |  |  |  |  |  |
Number of shares authorized |  |  |  |  |  |  | 1,100,000
Number of additional shares authorized | 1,100,000 | 672,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |  |  |  | 1,171,675 |  |  |
Omnibus Plan 2014 [Member] | Minimum [Member] |  |  |  |  |  |  |
Awards vesting period |  |  |  | 3 years |  |  |
Omnibus Plan 2014 [Member] | Maximum [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period |  |  |  | 10 years |  |  |
The 2019 Long-term Incentive Compensation Program [Member] |  |  |  |  |  |  |
Awards vesting period |  |  | 3 years |  |  |  |
PRSU Awards, Percentage of Target Award, Below Threshold-level Performance |  |  | 0.00% |  |  |  |
PRSU Awards, Percentage of Target Award, Threshold-level Performance |  |  | 50.00% |  |  |  |
PRSU Awards, Percentage of Target Award, Target-Level Performance |  |  | 100.00% |  |  |  |
PRSU Awards, Percentage of Target Award, Maximum-Level Performance |  |  | 150.00% |  |  |  |
Phantom Stock Plan [Member] | Officer [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights in the First Five Years of Employment, Percentage |  |  |  | 20.00% |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights After Five Years of Employment, Percentage |  |  |  | 100.00% |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights Upon A Change in Control, Percentage |  |  |  | 100.00% |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |
Awards granted |  |  |  | 238,985 | 173,528 | 263,574 |
Restricted Stock Units (RSUs) [Member] | Omnibus Plan 2014 [Member] |  |  |  |  |  |  |
Total unrecognized compensation cost |  |  |  | $ 4,600 |  |  |
Weighted-average period of recognition of compensation cost |  |  |  | 2 years 292 days |  |  |
Total fair value of awards vested |  |  |  | $ 5,900 | $ 5,700 | $ 7,400 |
Performance-based Restricted Stock Units [Member] |  |  |  |  |  |  |
Awards granted |  |  |  | 94,185 | 72,143 | 67,352 |
Phantom Share Units (PSUs) [Member] | Phantom Stock Plan [Member] |  |  |  |  |  |  |
Stock-based compensation expense (benefit) |  |  |  | $ 1,100 | $ 400 | $ 100 |
Total fair value of awards vested |  |  |  | $ 52,000 | $ 10,000 | $ 31,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period |  |  |  | 1 year |  |  |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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