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SHORT-TERM INVESTMENTS - Short-term Investments (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Mar. 31, 2023
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Cost or Amortized Cost | $ 23.5 | $ 189.0
Gross Unrealized, Gains | 0.0 | 0.0
Gross Unrealized, Losses | 0.0 | (2.0)
Fair Value | 23.5 | 187.0
Bank time deposits |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost or Amortized Cost | 20.6 | 41.8
Gross Unrealized, Gains | 0.0 | 0.0
Gross Unrealized, Losses | 0.0 | 0.0
Fair Value | 20.6 | 41.8
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cost or Amortized Cost | 2.9 | 147.2
Gross Unrealized, Gains | 0.0 | 0.0
Gross Unrealized, Losses | 0.0 | (2.0)
Fair Value | $ 2.9 | $ 145.2

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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