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Investment Securities - Additional Information (Details)
$ in Thousands
Jun. 30, 2022
USD ($)
security
Dec. 31, 2021
USD ($)
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]    
Accrued interest receivable $ 47,141 $ 45,242
Carrying Value Of Investment Securities Pledged $ 3,700,000 2,900,000
Number of available for sale debt securities in unrealized loss positions | security 455  
Available-for-sale Securities    
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]    
Accrued interest receivable $ 9,000 8,400
Held-to-maturity Securities    
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]    
Accrued interest receivable $ 7,500 $ 8,200