Securities Available for Sale (Details 3) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	$ 718,367	$ 91,251
Unrealized Losses, Less Than 12 Months	(10,925)	(506)
Fair Value, 12 Months or Longer	74,575	0
Unrealized Losses, 12 Months or Longer	(2,812)	0
Fair Value, Total	792,942	91,251
Unrealized Losses, Total	(13,737)	(506)
U.S. Treasury and U.S. government sponsored entities
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	81,236	8,153
Unrealized Losses, Less Than 12 Months	(1,960)	(54)
Fair Value, 12 Months or Longer	8,271	0
Unrealized Losses, 12 Months or Longer	(378)	0
Fair Value, Total	89,507	8,153
Unrealized Losses, Total	(2,338)	(54)
State and political subdivisions
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	103,651	19,205
Unrealized Losses, Less Than 12 Months	(1,020)	(204)
Fair Value, 12 Months or Longer	10,020	0
Unrealized Losses, 12 Months or Longer	(185)	0
Fair Value, Total	113,671	19,205
Unrealized Losses, Total	(1,205)	(204)
Mortgage-backed securities - residential
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	525,792	63,401
Unrealized Losses, Less Than 12 Months	(7,872)	(243)
Fair Value, 12 Months or Longer	55,569	0
Unrealized Losses, 12 Months or Longer	(2,222)	0
Fair Value, Total	581,361	63,401
Unrealized Losses, Total	(10,094)	(243)
Collateralized mortgage obligations
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	7,270	294
Unrealized Losses, Less Than 12 Months	(71)	(3)
Fair Value, 12 Months or Longer	0	0
Unrealized Losses, 12 Months or Longer	0	0
Fair Value, Total	7,270	294
Unrealized Losses, Total	(71)	(3)
Corporate bonds
Investment securities with unrealized losses
Fair Value, Less Than 12 Months	418	198
Unrealized Losses, Less Than 12 Months	(2)	(2)
Fair Value, 12 Months or Longer	715	0
Unrealized Losses, 12 Months or Longer	(27)	0
Fair Value, Total	1,133	198
Unrealized Losses, Total	$ (29)	$ (2)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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