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v3.20.2

Debt and Credit Arrangements - Fair Value Disclosures about Debt (Details) | Sep. 30, 2020 | Dec. 31, 2019
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Convertible Debt | Convertible Notes, due 2024 |  |
Debt Instrument |  |
Debt instrument percentage over par value | 139.00% | 132.00%

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- Details
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- Details
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