Quarterly report pursuant to Section 13 or 15(d)

Organization and Basis of Presentation - Additional Information (Detail)

v3.20.1
Organization and Basis of Presentation - Additional Information (Detail)
$ in Millions
3 Months Ended
Jan. 01, 2020
Segment
Mar. 31, 2020
USD ($)
Organization Consolidation And Presentation Of Financial Statements [Abstract]    
Number of loan segments | Segment 4  
Increase to beginning balance of allowance for credit losses   $ 17.4
Decrease to beginning balance of allowance for off balance sheet items   (0.3)
After-tax charge to retained earnings   $ 12.2