XML 78 R63.htm IDEA: XBRL DOCUMENT v3.20.1
Loans - Allowance for Loan Losses and Recorded Investment in Loans (Phantoms) (Detail) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Acquired loans | ASC 310-30    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Acquired loans $ 7.4 $ 10.0