Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details)

v3.23.3
Note 11 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Cash and cash equivalents $ 112,150 $ 106,317 [1]
Held to maturity debt securities, fair value 933,006 935,953
Federal funds sold 91,035 1,515 [1]
Mortgage loans held for sale 6,333 1,607 [1]
Restricted equity securities 10,226 7,734 [1]
Loans, net 11,488,883 11,541,671 [1]
Federal funds purchased 1,370,289 1,618,798 [1]
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]    
Cash and cash equivalents 1,974,074 814,538
Held to maturity debt securities, fair value 558,196 507,151
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]    
Cash and cash equivalents 1,974,074 814,538
Held to maturity debt securities, fair value 523,182 470,954
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]    
Held to maturity debt securities, fair value 485,453 526,720
Federal funds sold 91,035 1,515
Mortgage loans held for sale 6,333 1,607
Restricted equity securities 10,226 7,734
Deposits 13,142,376 11,546,805
Federal funds purchased 1,370,289 1,618,798
Other borrowings 64,751 64,726
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]    
Held to maturity debt securities, fair value 409,574 464,749
Federal funds sold 91,035 1,515
Mortgage loans held for sale 6,281 1,604
Restricted equity securities 10,226 7,734
Deposits 13,128,874 11,529,647
Federal funds purchased 1,370,289 1,618,798
Other borrowings 57,829 57,101
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]    
Held to maturity debt securities, fair value 250 250
Loans, net 11,488,883 11,541,671
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]    
Held to maturity debt securities, fair value 250 250
Loans, net $ 11,069,141 $ 11,265,517
[1] derived from audited financial statements.