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Deposits (Tables)
 6 Months Ended
Jun. 30, 2022
Deposits [Abstract]  
Summary of Balances of Deposits A summary of the balances of deposits follows:
(in thousands)June 30,
2022		December 31,
2021
Noninterest-bearing demand$3,604,237 $2,979,882 
Interest-bearing demand1,796,580 1,568,682 
Savings3,028,787 2,520,959 
Time certificates, $250,000 or more49,908 44,652 
Other time certificates277,263 252,984 
Total deposits$8,756,775 $7,367,159