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Contingencies - Narrative (Details)
$ in Millions
1 Months Ended
Apr. 30, 2017
state
Jun. 30, 2022
USD ($)
loan
Jun. 30, 2021
USD ($)
loan
Loss Contingency [Abstract]      
Accrued penalty   $ 43.6  
Number of states charging with regulatory action | state 29    
Warranty repurchase demands unpaid principal balance   $ 51.9 $ 50.7
Warranty repurchase demands number of loans | loan   270 267