Quarterly report pursuant to Section 13 or 15(d)

Revenue From Contracts With Customers (Narrative) (Details)

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Revenue From Contracts With Customers (Narrative) (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Revenue from Contracts with Customers [Abstract]    
Commission receivables, net of an allowance $ 7.8 $ 17.4