Annual report pursuant to Section 13 and 15(d)

Note 21 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details)

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Note 21 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Cash and cash equivalents $ 56,934 $ 93,655
Federal funds sold 58,372 1,771
Held to maturity debt securities, fair value 466,286 250
Mortgage loans held for sale 1,114 14,425
Net Loans 9,416,274 8,377,746
Federal funds purchased 1,711,777 851,545
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]    
Cash and cash equivalents 4,163,724 2,209,640
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]    
Cash and cash equivalents 4,163,724 2,209,640
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]    
Federal funds sold 58,372 1,771
Held to maturity debt securities, fair value 462,707 0
Mortgage loans held for sale 1,114 14,425
Deposits 12,452,836 9,975,724
Federal funds purchased 1,711,777 851,545
Other borrowings 64,706 64,748
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]    
Federal funds sold 58,372 1,771
Held to maturity debt securities, fair value 466,036 0
Mortgage loans held for sale 1,111 14,497
Deposits 12,454,140 9,987,665
Federal funds purchased 1,711,777 851,545
Other borrowings 65,476 65,560
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]    
Held to maturity debt securities, fair value 250 250
Net Loans 9,416,274 8,377,746
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]    
Held to maturity debt securities, fair value 250 250
Net Loans $ 9,403,012 $ 8,387,718