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Leases Operating Lease Liabilities, Payments Due (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Leases [Abstract]  
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months $ 3.2
Lessee, Operating Lease, Liability, Payments, Due Year Two 1.8
Lessee, Operating Lease, Liability, Payments, Due Year Three 1.0
Lessee, Operating Lease, Liability, Payments, Due Year Four 1.0
Lessee, Operating Lease, Liability, Payments, Due Year Five 1.0
Lessee, Operating Lease, Liability, Payments, Due after Year Five 1.8
Lessee, Operating Lease, Liability, Payments, Due $ 9.8