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Contingencies (Narrative) (Details)
$ in Millions
1 Months Ended 9 Months Ended
Oct. 09, 2018
USD ($)
Aug. 30, 2016
classActionComplaint
Dec. 31, 2021
USD ($)
Nov. 05, 2018
USD ($)
Fiduciary Litigation        
Loss Contingencies [Line Items]        
Number of plaintiffs | classActionComplaint   7    
Settlement payment amount $ 92.5      
Insurance reimbursement, amount $ 37.8      
Insurance Litigation        
Loss Contingencies [Line Items]        
Lawsuit for insurance reimbursement, amount       $ 10.0
Net settlement amount     $ 22.7