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Leases (Lease Term and Discount Rate) (Details)
Jun. 30, 2021
Leases [Abstract]  
Finance leases, weighted average remaining lease term 2 years 3 months 18 days
Finance leases, weighted average discount rate (percent) 3.70%
Operating leases, weighted average remaining lease term 2 years 4 months 24 days
Operating leases, weighted average discount rate (percent) 3.58%