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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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