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Stock-Based Compensation Expense - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Stock Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options granted in period (in shares) | 203,606 | 656,350
Compensation cost not yet recognized | $ 22.0 |
Compensation cost not yet recognized, period of recognition | 2 years 3 months 18 days |
Stock-Settled Performance-Based Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation cost not yet recognized | $ 6.5 |
Compensation cost not yet recognized, period of recognition | 1 year 8 months 12 days |
Award vesting period | 1 year |
Stock-Settled Performance-Based Restricted Stock Units | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Stock units granted in period (in shares) | 120,710 | 128,883
Cash-Settled Performance-Based Share-Based Awards (Liability Awards) |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Target cash incentive | $ 1.0 | $ 1.0
Compensation cost not yet recognized | $ 2.7 |
Compensation cost not yet recognized, period of recognition | 1 year 10 months 24 days |
Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted stock units granted (in shares) | 30,500 | 26,226
Compensation cost not yet recognized | $ 1.2 |
Award vesting period | 1 year |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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