Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

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
	Total		Assets (Level 1)		(Level 2)		(Level 3)
June 30, 2024:
Short-term investments	$	49.7	$	—	$	49.7	$	—
Long-term investments		0.2		—		0.2		—
Forward contracts		(2.2)		—		(2.2)		—
Redeemable noncontrolling interests		(19.9)		—		—		(19.9)
Total	$	27.8	$	—	$	47.7	$	(19.9)
December 31, 2023:
Short-term investments	$	185.2	$	—	$	185.2	$	—
Long-term investments		0.4		—		0.4		—
Forward contracts		(0.5)		—		(0.5)		—
Redeemable noncontrolling interests		(30.7)		—		—		(30.7)
Total	$	154.4	$	—	$	185.1	$	(30.7)