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Investment Securities - Held-to-Maturity with Unrecognized Losses (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Fair Value
Less than 12 months	$ 1,768,083
12 months or longer	828,649
Total	2,596,732
Unrecognized Losses
Less than 12 months	(344,359)
12 months or longer	(151,768)
Total	(496,127)
U.S. government-sponsored entities and agencies
Fair Value
Less than 12 months	434,505
12 months or longer	223,930
Total	658,435
Unrecognized Losses
Less than 12 months	(113,697)
12 months or longer	(45,357)
Total	(159,054)
Mortgage-backed securities
Fair Value
Less than 12 months	513,470
12 months or longer	487,676
Total	1,001,146
Unrecognized Losses
Less than 12 months	(53,629)
12 months or longer	(69,939)
Total	(123,568)
States and political subdivisions
Fair Value
Less than 12 months	820,108
12 months or longer	117,043
Total	937,151
Unrecognized Losses
Less than 12 months	(177,033)
12 months or longer	(36,472)
Total	$ (213,505)

X

- Definition

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.

+ References

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-SubTopic 10
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Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.

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