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Share Based Compensation - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 29, 2020 | Mar. 31, 2020 | Sep. 30, 2020
Stock Option |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period |  |  | 4 years
Total unrecognized compensation cost |  |  | $ 14.9
Weighted-average period of total unrecognized compensation cost, in years |  |  | 1 year 4 months 24 days
Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) |  |  | 38,795
Total unrecognized compensation cost |  |  | $ 6.8
Weighted-average period of total unrecognized compensation cost, in years |  |  | 1 year 1 month 6 days
Restricted Stock | Employees and Non-employee Directors |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period |  |  | 3 years
Cash-settled Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period |  |  | 3 years
Granted (in shares) |  |  | 20,670
Total unrecognized compensation cost |  |  | $ 3.9
Weighted-average period of total unrecognized compensation cost, in years |  |  | 1 year
Performance Shares Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period |  | 3 years |
Granted (in shares) |  | 54,545 | 42,690
Payout percent |  | 250.00% |
Stock issued during period (in shares) | 136,370 |  |
Total unrecognized compensation cost |  |  | $ 9.9
Weighted-average period of total unrecognized compensation cost, in years |  |  | 1 year

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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