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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Cumulative foreign currency translation | $ (345.7) | $ (269.8) |
Unrecognized pension costs (net of tax benefit of $9.9 in 2022 and $21.4 in 2021) | (34.4) | (69.6) |
Unrealized gain on cash flow hedges (net of tax expense of $2.8 in 2022 and $3.0 in 2021) | 13.6 | 5.8 |
Total accumulated other comprehensive income (loss) | (366.5) | (333.6) |
Unrecognized pension costs, tax benefit | 9.9 | 21.4 |
Unrealized gain on cash flow hedges, tax expense | 2.8 | 3.0 |
Foreign currency translation adjustment [Abstract] |  |  |
Foreign currency translation adjustment, pre-tax amount | (78.9) | (78.9) | $ 10.9
Foreign currency translation adjustment, tax (expense) benefit | 0.0 | 0.0 | 0.0
Foreign currency translation adjustments, net-of-tax amount | (78.9) | (78.9) | 10.9
Pension plans [Abstract] |  |  |
Net actuarial gains (losses) and prior service costs arising during the period, pre-tax amount | 41.4 | 49.3 | (37.9)
Net actuarial gains (losses) and prior service costs arising during the period, tax (expense) benefit | (9.8) | (12.5) | 9.2
Net actuarial gains (losses) and prior service costs arising during the period, net-of-tax amount | 31.6 | 36.8 | (28.7)
Amortization of net actuarial (gains) losses and prior service costs, pre-tax amount | 4.9 | 11.3 | 13.4
Amortization of net actuarial (gains) losses and prior service costs, tax (expense) benefit | (1.2) | (2.9) | (3.4)
Amortization of net actuarial (gains) losses and prior service costs, net-of-tax amount | 3.7 | 8.4 | 10.0
Unrealized gains (losses) on cash flow hedges [Abstract] |  |  |
Unrealized gains (losses) on cash flow hedges, pre-tax amount | 10.6 | 11.4 | (11.6)
Unrealized gains (losses) on cash flow hedges, tax (expense) benefit | (2.8) | (3.0) | 3.1
Unrealized gains (losses) on cash flow hedges, net-of-tax amount | 7.8 | 8.4 | (8.5)
Total other comprehensive income (loss), pre-tax amount | (22.0) | (6.9) | (25.2)
Total other comprehensive income (loss), tax | (13.8) | (18.4) | 8.9
Total other comprehensive income (loss), net of tax | $ (35.8) | $ (25.3) | $ (16.3)

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