Interest Expense, Net (Tables)

6 Months Ended

Jun. 30, 2021

Other Income and Expenses [Abstract]

Schedule of Interest Expense

Interest expense, net was as follows: 

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Contractual interest, net of interest rate swaps	$	6.8	$	2.2	$	10.5	$	4.3
Accretion of debt discount	10.7		10.5		21.7		20.9
Amortization of debt issuance costs	1.0		0.7		1.8		1.4
Capitalized interest	(1.9)		(1.6)		(3.8)		(3.2)
Interest expense, net of portion capitalized	16.6		11.8		30.2		23.4
Interest income	(0.2)		(0.7)		(0.4)		(2.2)
Interest expense, net	$	16.4	$	11.1	$	29.8	$	21.2