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Leases (Narrative) (Details)
$ in Millions
Mar. 31, 2021
USD ($)
Lessee, Lease, Description [Line Items]  
Total minimum future lease payments $ 7.2
Minimum  
Lessee, Lease, Description [Line Items]  
Operating lease not yet commenced, lease term 2 years
Maximum  
Lessee, Lease, Description [Line Items]  
Operating lease not yet commenced, lease term 13 years