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v3.22.2.2

Marketable Investment Securities - Cash, Cash Equivalents, and Maturities of Debt Securities Classified as Available-For-Sale Securities (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Amortized cost |  |
Cash and cash equivalents | $ 110.7 | $ 258.4
Available-for-sale, Due within one year | 83.4 |
Available-for-sale, Due after one year through five years | 68.3 |
Available-for-sale, Due after five years | 0.0 |
Amortized cost | 262.4 | 398.9
Estimated fair value |  |
Cash and cash equivalents | 110.7 | 258.4
Available-for-sale, Due within one year | 82.5 |
Available-for-sale, Due after one year through five years | 66.0 |
Available-for-sale, Due after five years | 0.0 |
Estimated fair value | 259.2 | 398.8
Cash |  |
Amortized cost |  |
Cash and cash equivalents | 57.8 | 195.2
Estimated fair value |  |
Cash and cash equivalents | 57.8 | 195.2
Cash equivalents |  |
Amortized cost |  |
Cash and cash equivalents | 52.9 | 63.2
Estimated fair value |  |
Cash and cash equivalents | $ 52.9 | $ 63.2

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