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2. Amortized Cost and Fair Value of Debt Securities (Details) $ in Millions | Mar. 31, 2023 USD ($) | [1]
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Fair Value Disclosures [Abstract] |
Mature in less than one year | $ 412.5
Mature in one to five years | 777.2
Mature in more than five years | 154.4
Total Amortized Cost | 1,344.1
Mature in less than one year | 409.1
Mature in one to five years | 767.7
Mature in more than five years | 150.8
Debt Securities, Available-for-sale | $ 1,327.6
[1] | Available-for-sale investments are included in Short-term investments in the condensed consolidatedbalance sheets.

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