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Securities, AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Available-for-sale Securities, Debt Maturities, Amortized Cost [Abstract]
Within one year	$ 16,971
From one to five years	509,520
From five to ten years	423,813
After ten years	691,052
Amortized cost	1,641,356	$ 1,743,882
Available-for-sale Securities, Debt Maturities, Estimated Fair Value [Abstract]
Within one year	16,676
From one to five years	447,316
From five to ten years	359,342
After ten years	575,698
Fair value	$ 1,399,032	$ 1,527,225

X

- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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