Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Schedule of Least Cost

The components of total lease cost were as follows:

(in millions)	Year Ended December 31, 2020		Year Ended December 31, 2019
Short-term lease cost (a) (b)	$	6.5	$	14.3
Operating lease cost (b)	6.6		6.7
Finance lease interest expense	0.1		—
Finance lease amortization expense (b)	0.2		—
Total lease cost	$	13.4	$	21.0

(a)Includes leases with terms of one month or less

(b)Includes variable lease costs, which were not material

Supplemental cash flow information related to leases are as follows:

(in millions)	Year Ended December 31, 2020		Year Ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	6.0	$	5.2
Operating cash flows from finance leases	$	0.1	$	—
Financing cash flows from finance lease	$	0.1	$	—
ROUAs obtained in exchange for lease obligations
Operating leases	$	2.8	$	3.7
Finance leases	$	5.1	$	1.5

Other information related to operating leases was as follows:

	As of December 31,
Weighted Average Remaining Lease Term	2020		2019
Operating leases	5.9 years		6.5 years
Finance leases	18.4 years		14.9 years
Weighted Average Discount Rate
Operating leases	3.8	%	3.9	%
Finance leases	2.9	%	3.9	%

Schedule of Future Minimum Operating Leases

As of December 31, 2020, the future undiscounted cash flows associated with the Company's operating and financing lease liabilities were as follows:

(in millions)
Years Ended December 31,	Operating Leases		Finance Leases
2021	$	5.5	$	0.4
2022	4.3		0.4
2023	3.8		0.4
2024	3.8		0.4
2025	3.6		0.4
Thereafter	5.5		6.0
Total future minimum lease payments	26.5		8.0
Less: Imputed interest	2.8		1.8
Present value of lease liabilities	$	23.7	$	6.2
Reported lease liabilities as of December 31, 2020
Accrued expense and other current liabilities (current maturities of leases)	$	4.7	$	0.2
Other liabilities (non-current maturities of leases)	19.0		6.0
Present value of lease liabilities	$	23.7	$	6.2