v3.25.3
Fair Value Measures and Disclosures (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Advances [Member]    
Derivative [Line Items]    
Hedged Asset, Fair Value Hedge [1] $ 11,794,760 $ 13,682,797
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease) (30,612) (153,830)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) (83) (296)
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) (30,695) (154,126)
Available-for-sale Securities    
Derivative [Line Items]    
Hedged Asset, Fair Value Hedge [1] 8,893,004 8,656,149
Hedged Asset, Active Fair Value Hedge, Cumulative Increase (Decrease) (127,891) (383,451)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 530 600
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) (127,361) (382,851)
Consolidated Obligations Bonds [Member]    
Derivative [Line Items]    
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) (138,797) (336,283)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 0 0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) (138,797) (336,283)
Hedged Liability, Fair Value Hedge [1] 20,581,524 17,551,788
Consolidated Obligations Discount Notes    
Derivative [Line Items]    
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) 2,840 2,806
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) 0 0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) 2,840 2,806
Hedged Liability, Fair Value Hedge $ 9,742,157 $ 4,637,983
[1] Includes only the portion of amortized cost representing the hedged items in active or discontinued fair value hedging relationships. Amortized cost includes fair value hedging adjustments.