Financial Instruments with Off-Balance-Sheet Risk - Additional Information (Details) $ in Millions |
12 Months Ended |
---|---|
Dec. 31, 2020
USD ($)
| |
Derivative Instruments And Hedging Activities Disclosure [Abstract] | |
Collateralized letters of credit outstanding | $ 7.8 |
Excess of insurance limits held in cash accounts | $ 3.7 |