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Share-Based Compensation - Components of Awards (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax compensation expense | $ 1,217 | $ 1,135 | $ 3,615 | $ 3,568
Income tax expense (benefit) | (136) | 149 | (711) | (373)
Total share-based compensation expense, net of income taxes | 1,081 | 1,284 | 2,904 | 3,195
Stock and ESPP Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax compensation expense | 16 | 23 | 131 | 76
Income tax expense (benefit) | 0 | 0 | (92) | (29)
Total share-based compensation expense, net of income taxes | 16 | 23 | 39 | 47
Restricted Stock Awards |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Pre-tax compensation expense | 1,201 | 1,112 | 3,484 | 3,492
Income tax expense (benefit) | (136) | 149 | (619) | (344)
Total share-based compensation expense, net of income taxes | $ 1,065 | $ 1,261 | $ 2,865 | $ 3,148

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- Definition Amount, after tax, of expense for award under share-based payment arrangement. + References No definition available. + Details
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- Definition Amount of tax benefit for recognition of expense of 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 (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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