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Trading Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Trading Securities [Line Items]
Trading Securities, Fair Value	$ 5,139,725	$ 5,193,505
Trading Securities, Net Unrealized Gain (Loss)	40,184	98,635
U.S. government securities [Member]
Schedule of Trading Securities [Line Items]
Trading Securities, Fair Value	332,466	10,959
Trading Securities, Net Unrealized Gain (Loss)	(569)	28
Residential agency mortgage-backed securities [Member]
Schedule of Trading Securities [Line Items]
Trading Securities, Fair Value	4,672,427	5,105,137
Trading Securities, Net Unrealized Gain (Loss)	40,586	98,124
Municipal securities [Member]
Schedule of Trading Securities [Line Items]
Trading Securities, Fair Value	76,004	37,413
Trading Securities, Net Unrealized Gain (Loss)	43	323
Other trading securities [Member]
Schedule of Trading Securities [Line Items]
Trading Securities, Fair Value	58,828	39,996
Trading Securities, Net Unrealized Gain (Loss)	$ 124	$ 160

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- Definition

Represents the unrealized holding gain or loss included in the fair value of trading securities as of the balance sheet date.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

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