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Leases (Tables)
 9 Months Ended
Sep. 30, 2020
Leases [Abstract]  
Components of Lease Expense and Other Information
The components of lease expense were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2020201920202019
Operating lease cost$6.7 $7.3 $21.0 $21.7 
Sublease income(0.2)(0.5)(0.9)(1.3)
Total lease cost$6.5 $6.8 $20.1 $20.4 

Other information related to leases was as follows:
Nine Months Ended September 30,
(in millions, except lease term and discount rate)20202019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$21.5 $22.4 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases3.3 25.6 
As of
September 30, 2020
Weighted average remaining lease term:
Operating leases6.7 years
Weighted average discount rate:
Operating leases5.3 %
Future Minimum Lease Payments
Future minimum lease payments, net of sub-lease income, for all non-cancelable leases as of September 30, 2020, were as follows:
(in millions)
2020$6.1 
202123.8 
202219.3 
202314.7 
202412.6 
20259.4 
Thereafter31.6 
Total minimum lease payments117.5 
Less imputed interest21.1 
Future minimum payments for leases, net of sublease rental income and imputed interest$96.4