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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2025
STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE |
Summary of the components of and changes in accumulated other comprehensive income (loss), net of income taxes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | Foreign Currency Translation |  | ​ | Change in Fair Value of Cash Flow Hedges |  | ​ | Defined Employee Benefit Plan |  | ​ | Total
​ | ​ | (in millions)
Balance at December 31, 2023 | ​ | $ | (10.8) | ​ | $ | 5.5 | ​ | $ | 11.4 | ​ | $ | 6.1
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | (6.6) | ​ | ​ | 1.4 | ​ | ​ | — | ​ | ​ | (5.2)
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | — | ​ | ​ | (2.8) | ​ | ​ | — | ​ | ​ | (2.8)
Balance at March 31, 2024 | ​ | ​ | (17.4) | ​ | ​ | 4.1 | ​ | ​ | 11.4 | ​ | ​ | (1.9)
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | (2.6) | ​ | ​ | 0.4 | ​ | ​ | — | ​ | ​ | (2.2)
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | — | ​ | ​ | (2.8) | ​ | ​ | — | ​ | ​ | (2.8)
Balance at June 30, 2024 | ​ | $ | (20.0) | ​ | $ | 1.7 | ​ | $ | 11.4 | ​ | $ | (6.9)
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | 10.8 | ​ | ​ | 0.4 | ​ | ​ | (2.2) | ​ | ​ | 9.0
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | 1.6 | ​ | ​ | (2.1) | ​ | ​ | 0.5 | ​ | ​ | —
Balance at September 30, 2024 | ​ | $ | (7.6) | ​ | $ | — | ​ | $ | 9.7 | ​ | $ | 2.1
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | Foreign Currency Translation |  | ​ | Change in Fair Value of Cash Flow Hedges |  | ​ | Defined Employee Benefit Plan |  | ​ | Total
​ | ​ | (in millions)
Balance at December 31, 2024 | ​ | $ | (22.3) | ​ | $ | — | ​ | $ | 10.5 | ​ | $ | (11.8)
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | 4.5 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4.5
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | 0.1 | ​ | ​ | — | ​ | ​ | (0.1) | ​ | ​ | —
Balance at March 31, 2025 | ​ | ​ | (17.7) | ​ | ​ | — | ​ | ​ | 10.4 | ​ | ​ | (7.3)
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | 16.2 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 16.2
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.1) | ​ | ​ | (0.1)
Balance at June 30, 2025 | ​ | $ | (1.5) | ​ | $ | — | ​ | $ | 10.3 | ​ | $ | 8.8
Other comprehensive income (loss) prior to reclassifications | ​ | ​ | (3.4) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (3.4)
Amounts reclassified from accumulated other comprehensive income (loss) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (0.1) | ​ | ​ | (0.1)
Balance at September 30, 2025 | ​ | $ | (4.9) | ​ | $ | — | ​ | $ | 10.2 | ​ | $ | 5.3
​
Schedule of amounts reclassified from accumulated other comprehensive income (loss) to specific caption within Consolidated Statements of Operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended September 30, |  | Nine Months Ended September 30, |  | ​ | To Caption on Consolidated
​ | 2025 | ​ | 2024 | ​ | 2025 |  | 2024 | ​ |  | Statements of Operations
​ | (in millions) | ​ | ​ | ​
Foreign currency translation | $ | — | ​ | $ | (1.6) | ​ | $ | (0.1) | ​ | $ | (1.6) | ​ | ​ | Other income (expense), net
Cash flow hedges | ​ | — | ​ | ​ | 2.1 | ​ | ​ | — | ​ | ​ | 7.7 | ​ | ​ | Interest expense
Defined employee benefit plan | ​ | 0.1 | ​ | ​ | (0.5) | ​ | ​ | 0.3 | ​ | ​ | (0.5) | ​ | ​ | Other income (expense), net
Total reclassifications | $ | 0.1 | ​ | $ | — | ​ | $ | 0.2 | ​ | $ | 5.6 | ​ | ​ | ​
Summary of earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30, | ​
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |
​ | ​ | (in millions, except per share amounts) | ​
Income (loss) from continuing operations | ​ | $ | 46.4 | ​ | $ | (14.1) | ​ | $ | 96.8 | ​ | $ | 7.3 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic weighted-average common shares outstanding | ​ |  | 37.6 | ​ |  | 37.5 | ​ |  | 37.6 | ​ |  | 37.5 | ​
Dilutive effect of convertible notes | ​ | ​ | 0.4 | ​ | ​ | — | ​ | ​ | 0.1 | ​ | ​ | — | ​
Dilutive effect of stock awards | ​ |  | 0.5 | ​ |  | — | ​ |  | 0.4 | ​ |  | 0.3 | ​
Diluted weighted-average common shares outstanding | ​ |  | 38.5 | ​ |  | 37.5 | ​ |  | 38.1 | ​ |  | 37.8 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
EPS from continuing operations | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Basic EPS | ​ | $ | 1.23 | ​ | $ | (0.38) | ​ | $ | 2.57 | ​ | $ | 0.19 | ​
Diluted EPS | ​ | $ | 1.21 | ​ | $ | (0.38) | ​ | $ | 2.54 | ​ | $ | 0.19 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Anti-dilutive shares not included above | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Stock awards | ​ | ​ | — | ​ | ​ | 0.4 | ​ | ​ | — | ​ | ​ | — | ​
Warrants | ​ | ​ | 0.8 | ​ | ​ | 3.0 | ​ | ​ | 1.8 | ​ | ​ | 3.2 | ​
Schedule of shares repurchases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30, | ​
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |
​ | ​ | (in millions, except per share amounts) | ​
Amount paid or accrued to repurchase shares | ​ | $ | — | ​ | $ | 1.8 | ​ | $ | 23.7 | ​ | $ | 1.8 | ​
Number of shares repurchased | ​ |  | — | ​ |  | — | ​ |  | 0.3 | ​ |  | — | ​
Average repurchase price per share | ​ | $ | — | ​ | $ | 93.58 | ​ | $ | 84.19 | ​ | $ | 93.58 | ​

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