XML 122 R111.htm IDEA: XBRL DOCUMENT v3.19.2
ALLOWANCE FOR LOAN AND LEASE LOSSES - Carrying Amount of Portfolios (Parenthetical) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Financing Receivable Allowance For Credit Losses [Line Items]            
Loans and Leases Receivable, Gross $ 9,113,955   $ 8,858,123 $ 8,640,291    
PCI loans            
Financing Receivable Allowance For Credit Losses [Line Items]            
Loans and Leases Receivable, Gross $ 141,706 $ 144,443 $ 146,640 $ 152,242 $ 155,281 $ 158,174