v3.25.1
Derivatives and Hedging Activities - Derivatives in Statement of Income and Impact on Interest) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Derivative Instruments, Gain (Loss) [Line Items]    
Advances [1] $ 446,613 $ 514,856
Available-for-sale securities [1] 181,762 220,367
Consolidated obligation bonds [1] (569,869) (621,413)
Total Net Interest income (Expense) Recorded on Statement of Income - Advances, AFS securities, and CO Bonds) [1] 58,506 113,810
Interest-rate related    
Derivative Instruments, Gain (Loss) [Line Items]    
Net impact on net interest income $ 26,318 $ 4,673
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Income (Expense), Operating Interest Income (Expense), Operating
Interest-rate related | Advances    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Advances Advances
Interest-rate related | AFS Securities    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Available-for-sale securities Available-for-sale securities
Interest-rate related | Consolidation Obligation Bond Member    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Consolidated obligation bonds Consolidated obligation bonds
Interest-rate related | Advances    
Derivative Instruments, Gain (Loss) [Line Items]    
Net impact on net interest income $ 68,699 $ 142,605
Interest-rate related | AFS Securities    
Derivative Instruments, Gain (Loss) [Line Items]    
Net impact on net interest income 66,627 109,297
Interest-rate related | Consolidation Obligation Bond Member    
Derivative Instruments, Gain (Loss) [Line Items]    
Net impact on net interest income (109,008) (247,229)
Interest Income (Expense), Net | Interest-rate related    
Derivative Instruments, Gain (Loss) [Line Items]    
Net interest settlements on derivatives [2] 48,436 27,996
Net gains (losses) on derivatives² [3] (60,190) 181,655
Net gains (losses) on hedged items³ [4] 46,058 (191,604)
Price alignment interest (7,986) (13,374)
Interest Income | Interest-rate related | Advances    
Derivative Instruments, Gain (Loss) [Line Items]    
Net interest settlements on derivatives [2] 73,144 147,350
Net gains (losses) on derivatives² [3] (174,553) 163,859
Net gains (losses) on hedged items³ [4] 172,645 (162,925)
Price alignment interest (2,537) (5,679)
Interest Income | Interest-rate related | AFS Securities    
Derivative Instruments, Gain (Loss) [Line Items]    
Net interest settlements on derivatives [2] 85,095 129,866
Net gains (losses) on derivatives² [3] (89,805) 71,185
Net gains (losses) on hedged items³ [4] 76,496 (84,330)
Price alignment interest (5,159) (7,424)
Interest Expense | Interest-rate related | Consolidation Obligation Bond Member    
Derivative Instruments, Gain (Loss) [Line Items]    
Net interest settlements on derivatives [2] (109,803) (249,220)
Net gains (losses) on derivatives² [3] 204,168 (53,389)
Net gains (losses) on hedged items³ [4] (203,083) 55,651
Price alignment interest $ (290) $ (271)
[1] For advances, AFS securities and CO bonds only.
[2] Represents interest income/expense on derivatives in qualifying fair-value hedging relationships. Net interest settlements on derivatives that are not in qualifying fair-value hedging relationships are reported in other income.
[3] Includes increases (decreases) in estimated fair value and swap fees received (paid) resulting from terminations of derivatives.
[4]     Includes increases (decreases) in estimated fair value and amortization of net gains and losses on ineffective and discontinued fair-value hedging relationships.