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v3.25.1

Long-term Debt - Schedule of Debt (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Carrying amount |  |  |
Debt Instrument [Line Items] |  |  |
Less: Unamortized debt issuance costs | $ (5.8) |  | $ (6.3)
Total debt | 347.2 |  | 348.1
BUMA Loan Note | 9.5 |  | 9.3
Finance lease obligations | 23.5 |  | 25.1
Total debt | 347.2 |  | 348.1
Less: Current portion of long-term debt | 16.0 |  | 15.8
Long-term debt | 331.2 |  | 332.3
Interest expense, net of capitalized interest | 11.5 | $ 14.7 |
Interest Paid, Capitalized, Investing Activity | 9.9 | 11.5 |
Noncash interest expense | 1.6 | 1.3 |
Interest Costs Capitalized | (2.2) | 0.0 |
Financial assurance instruments |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | 7.2 | 8.8 |
Indebtedness |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | 2.6 | 2.6 |
Capital Lease Obligations |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | 0.4 | 0.4 |
Amortization of debt issuance costs |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | 1.4 | 1.2 |
Other |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | 1.5 | 0.9 |
Senior Notes | 3.250% Convertible Senior Notes due March 2028 (2028 Convertible Notes) |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 320.0 |  | $ 320.0
Stated interest rate | 3.25% |  |
Secured debt | Accounts Receivable Securitization Program |  |  |
Debt Instrument [Line Items] |  |  |
Interest expense, net of capitalized interest | $ 0.6 | $ 0.8 |

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