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Income taxes - Movement in net deferred taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income taxes
Deferred tax liability (asset) at beginning of year	$ 45.8	$ 16.2
Recognized in profit/loss	10.0	21.8
Recognized in other comprehensive income (loss)	(3.0)	6.3
Other	(2.8)	1.5
Deferred tax liability (asset) at end of year	$ 50.0	$ 45.8

X

- Definition

The amount of deferred tax related to other items.

+ References

No definition available.

+ Details

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X

- Definition

The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities]

+ References

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- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

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X

- Definition

The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income]

+ References

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