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Leases (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
The following table displays our future lease obligations related to non-cancellable operating leases with an initial term in excess of 12 months as of December 31, 2021
2022$19.9 
202317.9 
202413.3 
202510.4 
20268.9 
Thereafter21.4 
Total undiscounted future operating lease obligations91.8 
Less: imputed interest7.7 
Present value of future operating lease obligations$84.1 
Lease, Cost
The following table includes other supplemental information regarding our operating leases.
As of or for the Year Ended December 3120212020
Operating cash outflows from operating leases$23.4 $22.6 
Right-of-use assets obtained in exchange for new operating lease liabilities$16.9 $28.0 
Weighted average remaining lease term (in years)6.06.4
Weighted average discount rate(a)
2.5 %2.6 %
(a)We use a discount rate for each lease based on an estimated incremental borrowing rate over a similar term as the lease, as the discount rate implicit in each lease cannot be readily determined.