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INVESTMENTS | 3 Months Ended
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Mar. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
INVESTMENTS | INVESTMENTS Marketable Securities As of March 31, 2025 and December 31, 2024, marketable equity securities recorded within other current assets in the Consolidated Balance Sheets were $2.1 million and $2.2 million, respectively. Net unrealized gains recognized during the three-months ended March 31, 2025 and 2024 on marketable equity securities held at the reporting date were none and $0.1 million, respectively. Marketable debt securities accounted for as AFS, and recorded within Other current assets in the Consolidated Balance Sheets, were as follows:
| As of March 31, 2025
|  |  |  |  |  |  |  |  | Fair Value of Securities with Contractual Maturities
(in millions) | Amortized Cost |  | Total Net Gains 1 |  | Total Net Losses 1 |  | Fair Value |  | Within 1 Year |  | After 1 Year through 5 Years |  | After 5 Years
U.S. Treasury | $19.9 |  | $0.1 |  | $— |  | $20.0 |  | $3.5 |  | $13.3 |  | $3.2
Municipal securities | 10.0 |  | 0.1 |  | — |  | 10.1 |  | 1.5 |  | 7.1 |  | 1.5
Corporate debt | 21.3 |  | 0.1 |  | — |  | 21.4 |  | 4.3 |  | 14.1 |  | 3.0
Total | $51.2 |  | $0.3 |  | $— |  | $51.5 |  | $9.3 |  | $34.5 |  | $7.7
| As of December 31, 2024
|  |  |  |  |  |  |  |  | Fair Value of Securities with Contractual Maturities
(in millions) | Amortized Cost |  | Total Net Gains 1 |  | Total Net Losses 1 |  | Fair Value |  | Within 1 Year |  | After 1 Year through 5 Years |  | After 5 Years
U.S. Treasury | $20.4 |  | $— |  | $(0.2) |  | $20.2 |  | $3.4 |  | $13.8 |  | $3.1
Municipal securities | 10.0 |  | — |  | — |  | 10.0 |  | 1.5 |  | 7.0 |  | 1.5
Corporate debt | 21.0 |  | — |  | (0.1) |  | 20.9 |  | 4.2 |  | 13.7 |  | 2.9
Total | $51.4 |  | $— |  | $(0.3) |  | $51.1 |  | $9.1 |  | $34.5 |  | $7.5
1 Represents total unrealized gains (losses) for securities with net gains (losses) in accumulated other comprehensive income. Proceeds from the maturity of AFS debt securities were $0.6 million and none for the three-months ended March 31, 2025 and 2024. There were no gross realized gains or losses on the maturity of AFS debt securities for the three- months ended March 31, 2025 and 2024.

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- Definition The entire disclosure for investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 321 -Publisher FASB -URI https://asc.fasb.org/321/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 325 -Publisher FASB -URI https://asc.fasb.org/325/tableOfContent + Details
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- References No definition available. + Details
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