XML 91 R73.htm IDEA: XBRL DOCUMENT v3.22.2
Deposits - Additional Information About Corporation's Deposits (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Deposit Liability [Line Items]    
Deposits from foreign sources (primarily Mexico) $ 1,090,169 $ 993,479
Non-interest-bearing public funds deposits 18,783,931 18,423,018
Interest-bearing public funds deposits 26,817,834 24,272,678
Total deposits not covered by deposit insurance 25,810,407 24,125,359
Time deposits not covered by deposit insurance 364,486 238,608
Public Funds [Member]    
Deposit Liability [Line Items]    
Non-interest-bearing public funds deposits 681,205 1,235,026
Interest-bearing public funds deposits $ 837,427 $ 810,863