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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2020 | Jun. 30, 2019 | Sep. 30, 2020
Convertible notes conversion discount, taxes |  | $ 4.1 |
Issuance cost, equity component |  | $ 1.1 |
Convertible Notes | Convertible Senior Notes due 2024 |  |  |
Convertible notes conversion discount, taxes | $ 1.8 |  |
Issuance cost, equity component |  |  | $ 1.1
Convertible Notes | Convertible Senior Notes Due 2026 |  |  |
Convertible notes conversion discount, taxes | 6.2 |  | (4.4)
Issuance cost, equity component | $ 0.9 |  | $ 0.9

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