Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Schedule of Components of Lease Costs

Components of operating lease costs are as follows:

(in millions)
Year Ended December 31,	2021		2020		2019
Operating lease cost	$	8.6	$	7.5	$	7.3
Sublease income	(1.5)		(1.8)		(1.8)
Net lease cost	$	7.1	$	5.7	$	5.5

Lease term and discount rate are as follows:

As of December 31,	2021		2020
Weighted-average remaining lease term (years)	5.5		5.5
Weighted-average discount rate	5.5	%	5.6	%

Schedule of Payments of Lease Liabilities

The following is a schedule of payments of lease liabilities as of December 31, 2021:

(in millions)
Years Ending December 31,	Amount
2022	$	3.2
2023	3.7
2024	3.8
2025	2.5
2026	1.3
Thereafter	3.0
Total undiscounted cash flows	$	17.5
Less: imputed interest	(2.4)
Present value of lease liabilities	$	15.1
Less: lease liabilities, current	(2.4)
Total lease liabilities, noncurrent	$	12.7