Operating Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Components of Lease Expense and Supplemental Cash Flow Information Related to Leases

The components of lease expense for the three months ended March 31, 2020 were as follows:

$ in millions	Three months ended March 31, 2020		Three months ended March 31, 2019
Operating lease cost	20.6		12.8
Variable lease cost	5.3		6.8
Less: sublease income	(0.2	)	(0.1	)
Total lease expense	25.7		19.5

Supplemental cash flow information related to leases for the three months ended March 31, 2020 was as follows:

$ in millions	Three months ended March 31, 2020	Three months ended March 31, 2019
Operating cash flows from operating leases included in the measurement of lease liabilities	18.7	15.0
Right-of-use assets obtained in exchange for new operating lease liabilities	9.5	4.1

Maturities of Company's Lease Liabilities

As of March 31, 2020 the maturities of the company’s lease liabilities (primarily related to real estate leases) were as follows:

$ in millions
Year Ending December 31,	Lease Liabilities
2020 (excluding the three months ended March 31, 2020)	59.2
2021	73.0
2022	64.6
2023	55.8
2024	42.0
Thereafter	99.3
Total lease payments	393.9
Less: interest	(40.8	)
Present value of lease liabilities	353.1