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v3.22.1

Unaudited Consolidated Statements of Cash Flows (Parenthetical) | Mar. 31, 2022 | Mar. 19, 2021 | Jan. 30, 2018
--- | --- | --- | ---
1.5% Convertible Unsecured Senior Notes |  |  |
Stated interest rate | 1.50% |  | 1.50%
4.75% Convertible Senior Notes |  |  |
Stated interest rate | 4.75% | 4.75% |

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