Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2021

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)
March 31, 2021:
Short-term investments	$	33.6	$	33.6	$	—	$	—
Forward contracts		(10.8)		—		(10.8)		—
Total	$	22.8	$	33.6	$	(10.8)	$	—
December 31, 2020:
Short-term investments	$	36.1	$	36.1	$	—	$	—
Forward contracts		(2.7)		—		(2.7)		—
Total	$	33.4	$	36.1	$	(2.7)	$	—