Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Lease, Cost

The components of lease expense were as follows: 

	Three months ended March 31,
	2020		2019
Operating lease cost:
Amortization of right-of-use assets	$	1.1	$	0.6
Interest on lease liabilities	0.3		0.1
Total operating lease cost	$	1.4	$	0.7

Schedule of Leases Supplemental Balance Sheets

Supplemental balance sheet information related to leases was as follows:

(In millions, except lease term and discount rate)	Balance Sheet location	March 31, 2020			December 31, 2019
Operating lease right-of-use assets	Other assets	$	25.6		$	24.7
Operating lease liabilities, current portion	Other current liabilities	4.2			3.6
Operating lease liabilities	Other liabilities	22.7			22.1
Total operating lease liabilities		$	26.9		$	25.7
Operating leases:
Weighted average remaining lease term (years)		7.7			8.0
Weighted average discount rate		4.2		%	4.2		%