XML 110 R92.htm IDEA: XBRL DOCUMENT v3.22.0.1
Deposits - Average Interest Rate (Details)
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Average interest rate:      
Contractual deposits outstanding 0.78% 2.21% 2.46%
HSA deposits 0.03% 0.00% 0.00%
Interest-bearing money market deposits 0.22% 0.61% 2.28%