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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Consolidated Statements of Comprehensive Income
Net income (loss)	$ 167.8	$ (184.5)	$ 341.2	$ (74.9)
Other comprehensive income (loss), net of income tax:
Foreign currency translation adjustments	10.6	(60.9)	30.4	(87.4)
Unrealized holding losses on financial investments	(0.8)	(0.1)	(1.7)	(0.1)
Post-retirement benefit obligations			(0.1)
Comprehensive income (loss)	177.6	(245.5)	369.8	(162.4)
Comprehensive income allocated to participating securities	(0.8)		(1.6)
Comprehensive income allocated to common stockholders, net of income tax	$ 176.8	$ (245.5)	$ 368.2	$ (162.4)

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