Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Income Tax Expense (Details) - USD ($) $ in Millions	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Tax Expense
Current income tax expense	$ 31.4	$ 44.4	$ 82.1	$ 66.5
Deferred income tax expense	37.2	50.9	46.3	56.3
Income tax expense	$ 68.6	$ 95.3	$ 128.4	$ 122.8

- Definition

The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]

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