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FAIR VALUE MEASUREMENTS (Tables)
12 Months Ended
Dec. 31, 2025
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities at Fair Value on Recurring Basis
The Company measures the following assets and liabilities at fair value on a recurring basis:
As of December 31, 2025
(in millions)
Recorded
Balance
Level 1
Level 2
Level 3
Cash, cash equivalents, and restricted cash
$157.7 
$157.7 
$— 
$— 
Marketable securities
162.2 
162.2 
— 
— 
EVE Investment
15.4 
4.0 
— 
11.4 
Total
$335.3 
$323.9 
$— 
$11.4 
As of December 31, 2024
(in millions)
Recorded
Balance
Level 1
Level 2
Level 3
Cash, cash equivalents, and restricted cash
$131.9 
$131.9 
$— 
$— 
Marketable securities
191.5 
191.5 
— 
— 
EVE Investment
18.7 
5.4 
— 
13.3 
U.S. Treasury Warrants
(6.8)
— 
— 
(6.8)
Total
$335.3 
$328.8 
$— 
$6.5 
Schedule of Fair Valuation of Level 3 Investments
The implied volatility, which is the unobservable input, used in the determination of fair value of Level 3 investments for the years ended December 31, 2025 and 2024 is as follows:
20252024
EVE Investment
61.6%72.1%
Schedule of Reconciliation of Level 3 Fair Value Measurements
The reconciliation of Level 3 fair value measurements during the years ended December 31, 2025 and 2024 are as follows:
(in millions) 
Balance at December 31, 2023$8.9 
Change in fair value of Eve Investment (unrealized)(2.6)
Change in fair value of U.S. Treasury Warrants (unrealized)0.2 
Balance at December 31, 20246.5 
Change in fair value of Eve Investment (unrealized)(1.9)
Change in fair value of U.S. Treasury Warrants (unrealized)(1.7)
U.S. Treasury Warrants exercised 1.1 
U.S. Treasury Warrants converted to equity
7.4 
Balance at December 31, 2025$11.4