Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Measurements

Fair values of financial and non-financial assets and liabilities

	Fair Value Measurements
			Quoted Prices in		Significant		Significant
			Active Markets		Observable		Unobservable
			for Identical		Inputs		Inputs
2022	Total		Assets (Level 1)		(Level 2)		(Level 3)
Short-term investments	$	61.1	$	—	$	61.1	$	—
Long-term investments		50.8		—		50.8		—
Forward contracts		1.5		—		1.5		—
Redeemable noncontrolling interest		(20.6)		—		—		(20.6)
Total	$	92.8	$	—	$	113.4	$	(20.6)
2021
Short-term investments	$	44.3	$	44.3	$	—	$	—
Forward contracts		(0.4)		—		(0.4)		—
Redeemable noncontrolling interest		(19.0)		—		—		(19.0)
Total	$	24.9	$	44.3	$	(0.4)	$	(19.0)