Changes to accumulated other comprehensive loss by component are as follows: | | | | | | | | | | | | | (dollars in millions) | Three Months Ended
March 31, | | 2025 | | 2024 | | Cumulative foreign currency translation | | | | | Balance at beginning of period | $ | (104.3) | | | $ | (80.3) | | | Other comprehensive gain (loss) before reclassifications | 0.7 | | | (4.8) | | | Balance at end of period | (103.6) | | | (85.1) | | | Unrealized net (loss) gain on cash flow derivatives | | | | | Balance at beginning of period | (1.5) | | | 0.7 | | | Other comprehensive gain before reclassifications | 0.7 | | | 1.4 | | Realized losses (gains) on derivatives (net of income tax (benefit) provision of $(0.1) and $0.1 in 2025 and 2024, respectively) | 0.1 | | | (0.4) | | | Balance at end of period | (0.7) | | | 1.7 | | | Pension liability | | | | | Balance at beginning of period | (6.1) | | | (4.6) | | | | | | Amounts reclassified from accumulated other comprehensive loss:(1) | 0.1 | | | 0.1 | | | Balance at end of period | (6.0) | | | (4.5) | | | Accumulated other comprehensive loss, end of period | $ | (110.3) | | | $ | (87.9) | | | | | | (1) Amortization of pension items: | | | | | Actuarial losses | $ | 0.1 | | | $ | 0.1 | | | | | | | 0.1 | | | 0.1 | | | Income tax benefit | — | | | — | | | Reclassification net of income tax benefit | $ | 0.1 | | | $ | 0.1 | |
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