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Investment Securities - Narrative (Details)
 1 Months Ended
Mar. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
security
Debt Securities, Available-for-sale [Line Items]      
Held-to-maturity, allowance for credit Loss   $ 0 $ 0
Transfer of securities from available-for-sale to held-to-maturity at fair value $ 357,500,000    
Net unrealized pre-tax loss   $ 98,990,000 $ 13,026,000
Number of investment securities in unrealized loss position | security   409 217
Number of investment securities in unrealized loss position longer than 12 months | security   173  
Number of investment securities in unrealized loss position less than 12 months | security   236  
Debt securities, available-for-sale unrealized loss position, allowance for credit loss   $ 0  
Accumulated Other Comprehensive Income (Loss), Net of Tax      
Debt Securities, Available-for-sale [Line Items]      
Net unrealized pre-tax loss $ 14,800,000