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Deposits (Tables)
 9 Months Ended
Sep. 30, 2022
Deposits [Abstract]  
Summary of Balances of Deposits A summary of the balances of deposits follows:
(in thousands)September 30,
2022		December 31,
2021
Noninterest-bearing demand$3,678,202 $2,979,882 
Interest-bearing demand1,749,123 1,568,682 
Savings2,924,674 2,520,959 
Time certificates, $250,000 or more46,688 44,652 
Other time certificates257,082 252,984 
Total deposits$8,655,769 $7,367,159