Investments (Tables)

12 Months Ended

Dec. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

	Cost Basis		Unrealized Gain		Fair Value
As of December 31, 2022
Short-term investments
Certificates of deposit	$	24.6	$	—	$	24.6
Long-term investments
Assets held in a rabbi trust	$	4.3	$	0.1	$	4.4
As of December 31, 2021
Short-term investments
Certificates of deposit	$	34.3	$	—	$	34.3
Long-term investments:
Assets held in a rabbi trust	$	5.4	$	1.6	$	7.0